/* SPDX-License-Identifier: ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) */
/*
 *  Video for Linux Two header file
 *
 *  Copyright (C) 1999-2012 the contributors
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  Alternatively you can redistribute this file under the terms of the
 *  BSD license as stated below:
 *
 *  Redistribution and use in source and binary forms, with or without
 *  modification, are permitted provided that the following conditions
 *  are met:
 *  1. Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *  2. Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in
 *     the documentation and/or other materials provided with the
 *     distribution.
 *  3. The names of its contributors may not be used to endorse or promote
 *     products derived from this software without specific prior written
 *     permission.
 *
 *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 *  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 *  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 *  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 *  OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 *  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
 *  TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 *  LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 *  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 *  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 *    Header file for v4l or V4L2 drivers and applications
 * with public API.
 * All kernel-specific stuff were moved to media/v4l2-dev.h, so
 * no #if __KERNEL tests are allowed here
 *
 *    See https://linuxtv.org for more info
 *
 *    Author: Bill Dirks <bill@thedirks.org>
 *        Justin Schoeman
 *              Hans Verkuil <hverkuil@xs4all.nl>
 *        et al.
 */
#ifndef _UAPI__LINUX_VIDEODEV2_H
#define _UAPI__LINUX_VIDEODEV2_H

#ifndef __KERNEL__
#include <sys/time.h>
#endif
#include <linux/compiler.h>
#include <linux/ioctl.h>
#include <linux/types.h>
#include <linux/v4l2-common.h>
#include <linux/v4l2-controls.h>

/*
 * Common stuff for both V4L1 and V4L2
 * Moved from videodev.h
 */
#define VIDEO_MAX_FRAME 32
#define VIDEO_MAX_PLANES 8

/*
 *    M I S C E L L A N E O U S
 */

/*  Four-character-code (FOURCC) */
#define v4l2_fourcc(a, b, c, d) ((__u32)(a) | ((__u32)(b) << 8) | ((__u32)(c) << 16) | ((__u32)(d) << 24))
#define v4l2_fourcc_be(a, b, c, d) (v4l2_fourcc(a, b, c, d) | (1U << 31))

/*
 *    E N U M S
 */
enum v4l2_field {
    V4L2_FIELD_ANY = 0,           /* driver can choose from none,
                     top, bottom, interlaced
                     depending on whatever it thinks
                     is approximate ... */
    V4L2_FIELD_NONE = 1,          /* this device has no fields ... */
    V4L2_FIELD_TOP = 2,           /* top field only */
    V4L2_FIELD_BOTTOM = 3,        /* bottom field only */
    V4L2_FIELD_INTERLACED = 4,    /* both fields interlaced */
    V4L2_FIELD_SEQ_TB = 5,        /* both fields sequential into one
                     buffer, top-bottom order */
    V4L2_FIELD_SEQ_BT = 6,        /* same as above + bottom-top order */
    V4L2_FIELD_ALTERNATE = 7,     /* both fields alternating into
                     separate buffers */
    V4L2_FIELD_INTERLACED_TB = 8, /* both fields interlaced, top field
                     first and the top field is
                     transmitted first */
    V4L2_FIELD_INTERLACED_BT = 9, /* both fields interlaced, top field
                     first and the bottom field is
                     transmitted first */
};
#define V4L2_FIELD_HAS_TOP(field)                                                                                      \
    ((field) == V4L2_FIELD_TOP || (field) == V4L2_FIELD_INTERLACED || (field) == V4L2_FIELD_INTERLACED_TB ||           \
     (field) == V4L2_FIELD_INTERLACED_BT || (field) == V4L2_FIELD_SEQ_TB || (field) == V4L2_FIELD_SEQ_BT)
#define V4L2_FIELD_HAS_BOTTOM(field)                                                                                   \
    ((field) == V4L2_FIELD_BOTTOM || (field) == V4L2_FIELD_INTERLACED || (field) == V4L2_FIELD_INTERLACED_TB ||        \
     (field) == V4L2_FIELD_INTERLACED_BT || (field) == V4L2_FIELD_SEQ_TB || (field) == V4L2_FIELD_SEQ_BT)
#define V4L2_FIELD_HAS_BOTH(field)                                                                                     \
    ((field) == V4L2_FIELD_INTERLACED || (field) == V4L2_FIELD_INTERLACED_TB || (field) == V4L2_FIELD_INTERLACED_BT || \
     (field) == V4L2_FIELD_SEQ_TB || (field) == V4L2_FIELD_SEQ_BT)
#define V4L2_FIELD_HAS_T_OR_B(field)                                                                                   \
    ((field) == V4L2_FIELD_BOTTOM || (field) == V4L2_FIELD_TOP || (field) == V4L2_FIELD_ALTERNATE)
#define V4L2_FIELD_IS_INTERLACED(field)                                                                                \
    ((field) == V4L2_FIELD_INTERLACED || (field) == V4L2_FIELD_INTERLACED_TB || (field) == V4L2_FIELD_INTERLACED_BT)
#define V4L2_FIELD_IS_SEQUENTIAL(field) ((field) == V4L2_FIELD_SEQ_TB || (field) == V4L2_FIELD_SEQ_BT)

enum v4l2_buf_type {
    V4L2_BUF_TYPE_VIDEO_CAPTURE = 1,
    V4L2_BUF_TYPE_VIDEO_OUTPUT = 2,
    V4L2_BUF_TYPE_VIDEO_OVERLAY = 3,
    V4L2_BUF_TYPE_VBI_CAPTURE = 4,
    V4L2_BUF_TYPE_VBI_OUTPUT = 5,
    V4L2_BUF_TYPE_SLICED_VBI_CAPTURE = 6,
    V4L2_BUF_TYPE_SLICED_VBI_OUTPUT = 7,
    V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY = 8,
    V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE = 9,
    V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE = 10,
    V4L2_BUF_TYPE_SDR_CAPTURE = 11,
    V4L2_BUF_TYPE_SDR_OUTPUT = 12,
    V4L2_BUF_TYPE_META_CAPTURE = 13,
    V4L2_BUF_TYPE_META_OUTPUT = 14,
    /* Deprecated, do not use */
    V4L2_BUF_TYPE_PRIVATE = 0x80,
};

#define V4L2_TYPE_IS_MULTIPLANAR(type)                                                                                 \
    ((type) == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE || (type) == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)

#define V4L2_TYPE_IS_OUTPUT(type)                                                                                      \
    ((type) == V4L2_BUF_TYPE_VIDEO_OUTPUT || (type) == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE ||                            \
     (type) == V4L2_BUF_TYPE_VIDEO_OVERLAY || (type) == V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY ||                          \
     (type) == V4L2_BUF_TYPE_VBI_OUTPUT || (type) == V4L2_BUF_TYPE_SLICED_VBI_OUTPUT ||                                \
     (type) == V4L2_BUF_TYPE_SDR_OUTPUT || (type) == V4L2_BUF_TYPE_META_OUTPUT)

#define V4L2_TYPE_IS_CAPTURE(type) (!V4L2_TYPE_IS_OUTPUT(type))

enum v4l2_tuner_type {
    V4L2_TUNER_RADIO = 1,
    V4L2_TUNER_ANALOG_TV = 2,
    V4L2_TUNER_DIGITAL_TV = 3,
    V4L2_TUNER_SDR = 4,
    V4L2_TUNER_RF = 5,
};

/* Deprecated, do not use */
#define V4L2_TUNER_ADC V4L2_TUNER_SDR

enum v4l2_memory {
    V4L2_MEMORY_MMAP = 1,
    V4L2_MEMORY_USERPTR = 2,
    V4L2_MEMORY_OVERLAY = 3,
    V4L2_MEMORY_DMABUF = 4,
};

/* see also http://vektor.theorem.ca/graphics/ycbcr/ */
enum v4l2_colorspace {
    /*
     * Default colorspace, i.e. let the driver figure it out.
     * Can only be used with video capture.
     */
    V4L2_COLORSPACE_DEFAULT = 0,

    /* SMPTE 170M: used for broadcast NTSC/PAL SDTV */
    V4L2_COLORSPACE_SMPTE170M = 1,

    /* Obsolete pre-1998 SMPTE 240M HDTV standard, superseded by Rec 709 */
    V4L2_COLORSPACE_SMPTE240M = 2,

    /* Rec.709: used for HDTV */
    V4L2_COLORSPACE_REC709 = 3,

    /*
     * Deprecated, do not use. No driver will ever return this. This was
     * based on a misunderstanding of the bt878 datasheet.
     */
    V4L2_COLORSPACE_BT878 = 4,

    /*
     * NTSC 1953 colorspace. This only makes sense when dealing with
     * really, really old NTSC recordings. Superseded by SMPTE 170M.
     */
    V4L2_COLORSPACE_470_SYSTEM_M = 5,

    /*
     * EBU Tech 3213 PAL/SECAM colorspace. This only makes sense when
     * dealing with really old PAL/SECAM recordings. Superseded by
     * SMPTE 170M.
     */
    V4L2_COLORSPACE_470_SYSTEM_BG = 6,

    /*
     * Effectively shorthand for V4L2_COLORSPACE_SRGB, V4L2_YCBCR_ENC_601
     * and V4L2_QUANTIZATION_FULL_RANGE. To be used for (Motion-)JPEG.
     */
    V4L2_COLORSPACE_JPEG = 7,

    /* For RGB colorspaces such as produces by most webcams. */
    V4L2_COLORSPACE_SRGB = 8,

    /* opRGB colorspace */
    V4L2_COLORSPACE_OPRGB = 9,

    /* BT.2020 colorspace, used for UHDTV. */
    V4L2_COLORSPACE_BT2020 = 10,

    /* Raw colorspace: for RAW unprocessed images */
    V4L2_COLORSPACE_RAW = 11,

    /* DCI-P3 colorspace, used by cinema projectors */
    V4L2_COLORSPACE_DCI_P3 = 12,
};

/*
 * Determine how COLORSPACE_DEFAULT should map to a proper colorspace.
 * This depends on whether this is a SDTV image (use SMPTE 170M), an
 * HDTV image (use Rec. 709), or something else (use sRGB).
 */
#define V4L2_MAP_COLORSPACE_DEFAULT(is_sdtv, is_hdtv)                                                                  \
    ((is_sdtv) ? V4L2_COLORSPACE_SMPTE170M : ((is_hdtv) ? V4L2_COLORSPACE_REC709 : V4L2_COLORSPACE_SRGB))

enum v4l2_xfer_func {
    /*
     * Mapping of V4L2_XFER_FUNC_DEFAULT to actual transfer functions
     * for the various colorspaces:
     *
     * V4L2_COLORSPACE_SMPTE170M, V4L2_COLORSPACE_470_SYSTEM_M,
     * V4L2_COLORSPACE_470_SYSTEM_BG, V4L2_COLORSPACE_REC709 and
     * V4L2_COLORSPACE_BT2020: V4L2_XFER_FUNC_709
     *
     * V4L2_COLORSPACE_SRGB, V4L2_COLORSPACE_JPEG: V4L2_XFER_FUNC_SRGB
     *
     * V4L2_COLORSPACE_OPRGB: V4L2_XFER_FUNC_OPRGB
     *
     * V4L2_COLORSPACE_SMPTE240M: V4L2_XFER_FUNC_SMPTE240M
     *
     * V4L2_COLORSPACE_RAW: V4L2_XFER_FUNC_NONE
     *
     * V4L2_COLORSPACE_DCI_P3: V4L2_XFER_FUNC_DCI_P3
     */
    V4L2_XFER_FUNC_DEFAULT = 0,
    V4L2_XFER_FUNC_709 = 1,
    V4L2_XFER_FUNC_SRGB = 2,
    V4L2_XFER_FUNC_OPRGB = 3,
    V4L2_XFER_FUNC_SMPTE240M = 4,
    V4L2_XFER_FUNC_NONE = 5,
    V4L2_XFER_FUNC_DCI_P3 = 6,
    V4L2_XFER_FUNC_SMPTE2084 = 7,
};

/*
 * Determine how XFER_FUNC_DEFAULT should map to a proper transfer function.
 * This depends on the colorspace.
 */
#define V4L2_MAP_XFER_FUNC_DEFAULT(colsp)                                                                              \
    ((colsp) == V4L2_COLORSPACE_OPRGB                                                                                  \
         ? V4L2_XFER_FUNC_OPRGB                                                                                        \
         : ((colsp) == V4L2_COLORSPACE_SMPTE240M                                                                       \
                ? V4L2_XFER_FUNC_SMPTE240M                                                                             \
                : ((colsp) == V4L2_COLORSPACE_DCI_P3                                                                   \
                       ? V4L2_XFER_FUNC_DCI_P3                                                                         \
                       : ((colsp) == V4L2_COLORSPACE_RAW                                                               \
                              ? V4L2_XFER_FUNC_NONE                                                                    \
                              : ((colsp) == V4L2_COLORSPACE_SRGB || (colsp) == V4L2_COLORSPACE_JPEG                    \
                                     ? V4L2_XFER_FUNC_SRGB                                                             \
                                     : V4L2_XFER_FUNC_709)))))

enum v4l2_ycbcr_encoding {
    /*
     * Mapping of V4L2_YCBCR_ENC_DEFAULT to actual encodings for the
     * various colorspaces:
     *
     * V4L2_COLORSPACE_SMPTE170M, V4L2_COLORSPACE_470_SYSTEM_M,
     * V4L2_COLORSPACE_470_SYSTEM_BG, V4L2_COLORSPACE_SRGB,
     * V4L2_COLORSPACE_OPRGB and V4L2_COLORSPACE_JPEG: V4L2_YCBCR_ENC_601
     *
     * V4L2_COLORSPACE_REC709 and V4L2_COLORSPACE_DCI_P3: V4L2_YCBCR_ENC_709
     *
     * V4L2_COLORSPACE_BT2020: V4L2_YCBCR_ENC_BT2020
     *
     * V4L2_COLORSPACE_SMPTE240M: V4L2_YCBCR_ENC_SMPTE240M
     */
    V4L2_YCBCR_ENC_DEFAULT = 0,

    /* ITU-R 601 -- SDTV */
    V4L2_YCBCR_ENC_601 = 1,

    /* Rec. 709 -- HDTV */
    V4L2_YCBCR_ENC_709 = 2,

    /* ITU-R 601/EN 61966-2-4 Extended Gamut -- SDTV */
    V4L2_YCBCR_ENC_XV601 = 3,

    /* Rec. 709/EN 61966-2-4 Extended Gamut -- HDTV */
    V4L2_YCBCR_ENC_XV709 = 4,

#ifndef __KERNEL__
    /*
     * sYCC (Y'CbCr encoding of sRGB), identical to ENC_601. It was added
     * originally due to a misunderstanding of the sYCC standard. It should
     * not be used, instead use V4L2_YCBCR_ENC_601.
     */
    V4L2_YCBCR_ENC_SYCC = 5,
#endif

    /* BT.2020 Non-constant Luminance Y'CbCr */
    V4L2_YCBCR_ENC_BT2020 = 6,

    /* BT.2020 Constant Luminance Y'CbcCrc */
    V4L2_YCBCR_ENC_BT2020_CONST_LUM = 7,

    /* SMPTE 240M -- Obsolete HDTV */
    V4L2_YCBCR_ENC_SMPTE240M = 8,
};

/*
 * enum v4l2_hsv_encoding values should not collide with the ones from
 * enum v4l2_ycbcr_encoding.
 */
enum v4l2_hsv_encoding {
    /* Hue mapped to 0 - 179 */
    V4L2_HSV_ENC_180 = 128,

    /* Hue mapped to 0-255 */
    V4L2_HSV_ENC_256 = 129,
};

/*
 * Determine how YCBCR_ENC_DEFAULT should map to a proper Y'CbCr encoding.
 * This depends on the colorspace.
 */
#define V4L2_MAP_YCBCR_ENC_DEFAULT(colsp)                                                                              \
    (((colsp) == V4L2_COLORSPACE_REC709 || (colsp) == V4L2_COLORSPACE_DCI_P3)                                          \
         ? V4L2_YCBCR_ENC_709                                                                                          \
         : ((colsp) == V4L2_COLORSPACE_BT2020                                                                          \
                ? V4L2_YCBCR_ENC_BT2020                                                                                \
                : ((colsp) == V4L2_COLORSPACE_SMPTE240M ? V4L2_YCBCR_ENC_SMPTE240M : V4L2_YCBCR_ENC_601)))

enum v4l2_quantization {
    /*
     * The default for R'G'B' quantization is always full range.
     * For Y'CbCr the quantization is always limited range, except
     * for COLORSPACE_JPEG: this is full range.
     */
    V4L2_QUANTIZATION_DEFAULT = 0,
    V4L2_QUANTIZATION_FULL_RANGE = 1,
    V4L2_QUANTIZATION_LIM_RANGE = 2,
};

/*
 * Determine how QUANTIZATION_DEFAULT should map to a proper quantization.
 * This depends on whether the image is RGB or not, the colorspace.
 * The Y'CbCr encoding is not used anymore, but is still there for backwards
 * compatibility.
 */
#define V4L2_MAP_QUANTIZATION_DEFAULT(is_rgb_or_hsv, colsp, ycbcr_enc)                                                 \
    (((is_rgb_or_hsv) || (colsp) == V4L2_COLORSPACE_JPEG) ? V4L2_QUANTIZATION_FULL_RANGE : V4L2_QUANTIZATION_LIM_RANGE)

/*
 * Deprecated names for opRGB colorspace (IEC 61966-2-5)
 *
 * WARNING: Please don't use these deprecated defines in your code, as
 * there is a chance we have to remove them in the future.
 */
#ifndef __KERNEL__
#define V4L2_COLORSPACE_ADOBERGB V4L2_COLORSPACE_OPRGB
#define V4L2_XFER_FUNC_ADOBERGB V4L2_XFER_FUNC_OPRGB
#endif

enum v4l2_priority {
    V4L2_PRIORITY_UNSET = 0, /* not initialized */
    V4L2_PRIORITY_BACKGROUND = 1,
    V4L2_PRIORITY_INTERACTIVE = 2,
    V4L2_PRIORITY_RECORD = 3,
    V4L2_PRIORITY_DEFAULT = V4L2_PRIORITY_INTERACTIVE,
};

struct v4l2_rect {
    __s32 left;
    __s32 top;
    __u32 width;
    __u32 height;
};

struct v4l2_fract {
    __u32 numerator;
    __u32 denominator;
};

struct v4l2_area {
    __u32 width;
    __u32 height;
};

/**
 * struct v4l2_capability - Describes V4L2 device caps returned by VIDIOC_QUERYCAP
 *
 * @driver:       name of the driver module (e.g. "bttv")
 * @card:       name of the card (e.g. "Hauppauge WinTV")
 * @bus_info:       name of the bus (e.g. "PCI:" + pci_name(pci_dev) )
 * @version:       KERNEL_VERSION
 * @capabilities: capabilities of the physical device as a whole
 * @device_caps:  capabilities accessed via this particular device (node)
 * @reserved:       reserved fields for future extensions
 */
struct v4l2_capability {
    __u8 driver[16];
    __u8 card[32];
    __u8 bus_info[32];
    __u32 version;
    __u32 capabilities;
    __u32 device_caps;
    __u32 reserved[3];
};

/* Values for 'capabilities' field */
#define V4L2_CAP_VIDEO_CAPTURE 0x00000001        /* Is a video capture device */
#define V4L2_CAP_VIDEO_OUTPUT 0x00000002         /* Is a video output device */
#define V4L2_CAP_VIDEO_OVERLAY 0x00000004        /* Can do video overlay */
#define V4L2_CAP_VBI_CAPTURE 0x00000010          /* Is a raw VBI capture device */
#define V4L2_CAP_VBI_OUTPUT 0x00000020           /* Is a raw VBI output device */
#define V4L2_CAP_SLICED_VBI_CAPTURE 0x00000040   /* Is a sliced VBI capture device */
#define V4L2_CAP_SLICED_VBI_OUTPUT 0x00000080    /* Is a sliced VBI output device */
#define V4L2_CAP_RDS_CAPTURE 0x00000100          /* RDS data capture */
#define V4L2_CAP_VIDEO_OUTPUT_OVERLAY 0x00000200 /* Can do video output overlay */
#define V4L2_CAP_HW_FREQ_SEEK 0x00000400         /* Can do hardware frequency seek  */
#define V4L2_CAP_RDS_OUTPUT 0x00000800           /* Is an RDS encoder */

/* Is a video capture device that supports multiplanar formats */
#define V4L2_CAP_VIDEO_CAPTURE_MPLANE 0x00001000
/* Is a video output device that supports multiplanar formats */
#define V4L2_CAP_VIDEO_OUTPUT_MPLANE 0x00002000
/* Is a video mem-to-mem device that supports multiplanar formats */
#define V4L2_CAP_VIDEO_M2M_MPLANE 0x00004000
/* Is a video mem-to-mem device */
#define V4L2_CAP_VIDEO_M2M 0x00008000

#define V4L2_CAP_TUNER 0x00010000     /* has a tuner */
#define V4L2_CAP_AUDIO 0x00020000     /* has audio support */
#define V4L2_CAP_RADIO 0x00040000     /* is a radio device */
#define V4L2_CAP_MODULATOR 0x00080000 /* has a modulator */

#define V4L2_CAP_SDR_CAPTURE 0x00100000    /* Is a SDR capture device */
#define V4L2_CAP_EXT_PIX_FORMAT 0x00200000 /* Supports the extended pixel format */
#define V4L2_CAP_SDR_OUTPUT 0x00400000     /* Is a SDR output device */
#define V4L2_CAP_META_CAPTURE 0x00800000   /* Is a metadata capture device */

#define V4L2_CAP_READWRITE 0x01000000   /* read/write systemcalls */
#define V4L2_CAP_ASYNCIO 0x02000000     /* async I/O */
#define V4L2_CAP_STREAMING 0x04000000   /* streaming I/O ioctls */
#define V4L2_CAP_META_OUTPUT 0x08000000 /* Is a metadata output device */

#define V4L2_CAP_TOUCH 0x10000000 /* Is a touch device */

#define V4L2_CAP_IO_MC 0x20000000 /* Is input/output controlled by the media controller */

#define V4L2_CAP_DEVICE_CAPS 0x80000000 /* sets device capabilities field */

/*
 *    V I D E O   I M A G E   F O R M A T
 */
struct v4l2_pix_format {
    __u32 width;
    __u32 height;
    __u32 pixelformat;
    __u32 field;        /* enum v4l2_field */
    __u32 bytesperline; /* for padding, zero if unused */
    __u32 sizeimage;
    __u32 colorspace; /* enum v4l2_colorspace */
    __u32 priv;       /* private data, depends on pixelformat */
    __u32 flags;      /* format flags (V4L2_PIX_FMT_FLAG_*) */
    union {
        /* enum v4l2_ycbcr_encoding */
        __u32 ycbcr_enc;
        /* enum v4l2_hsv_encoding */
        __u32 hsv_enc;
    };
    __u32 quantization; /* enum v4l2_quantization */
    __u32 xfer_func;    /* enum v4l2_xfer_func */
};

/*      Pixel format         FOURCC                          depth  Description  */

/* RGB formats */
#define V4L2_PIX_FMT_RGB332 v4l2_fourcc('R', 'G', 'B', '1')  /*  8  RGB-3-3-2     */
#define V4L2_PIX_FMT_RGB444 v4l2_fourcc('R', '4', '4', '4')  /* 16  xxxxrrrr ggggbbbb */
#define V4L2_PIX_FMT_ARGB444 v4l2_fourcc('A', 'R', '1', '2') /* 16  aaaarrrr ggggbbbb */
#define V4L2_PIX_FMT_XRGB444 v4l2_fourcc('X', 'R', '1', '2') /* 16  xxxxrrrr ggggbbbb */
#define V4L2_PIX_FMT_RGBA444 v4l2_fourcc('R', 'A', '1', '2') /* 16  rrrrgggg bbbbaaaa */
#define V4L2_PIX_FMT_RGBX444 v4l2_fourcc('R', 'X', '1', '2') /* 16  rrrrgggg bbbbxxxx */
#define V4L2_PIX_FMT_ABGR444 v4l2_fourcc('A', 'B', '1', '2') /* 16  aaaabbbb ggggrrrr */
#define V4L2_PIX_FMT_XBGR444 v4l2_fourcc('X', 'B', '1', '2') /* 16  xxxxbbbb ggggrrrr */

/*
 * Originally this had 'BA12' as fourcc, but this clashed with the older
 * V4L2_PIX_FMT_SGRBG12 which inexplicably used that same fourcc.
 * So use 'GA12' instead for V4L2_PIX_FMT_BGRA444.
 */
#define V4L2_PIX_FMT_BGRA444 v4l2_fourcc('G', 'A', '1', '2')     /* 16  bbbbgggg rrrraaaa */
#define V4L2_PIX_FMT_BGRX444 v4l2_fourcc('B', 'X', '1', '2')     /* 16  bbbbgggg rrrrxxxx */
#define V4L2_PIX_FMT_RGB555 v4l2_fourcc('R', 'G', 'B', 'O')      /* 16  RGB-5-5-5     */
#define V4L2_PIX_FMT_ARGB555 v4l2_fourcc('A', 'R', '1', '5')     /* 16  ARGB-1-5-5-5  */
#define V4L2_PIX_FMT_XRGB555 v4l2_fourcc('X', 'R', '1', '5')     /* 16  XRGB-1-5-5-5  */
#define V4L2_PIX_FMT_RGBA555 v4l2_fourcc('R', 'A', '1', '5')     /* 16  RGBA-5-5-5-1  */
#define V4L2_PIX_FMT_RGBX555 v4l2_fourcc('R', 'X', '1', '5')     /* 16  RGBX-5-5-5-1  */
#define V4L2_PIX_FMT_ABGR555 v4l2_fourcc('A', 'B', '1', '5')     /* 16  ABGR-1-5-5-5  */
#define V4L2_PIX_FMT_XBGR555 v4l2_fourcc('X', 'B', '1', '5')     /* 16  XBGR-1-5-5-5  */
#define V4L2_PIX_FMT_BGRA555 v4l2_fourcc('B', 'A', '1', '5')     /* 16  BGRA-5-5-5-1  */
#define V4L2_PIX_FMT_BGRX555 v4l2_fourcc('B', 'X', '1', '5')     /* 16  BGRX-5-5-5-1  */
#define V4L2_PIX_FMT_RGB565 v4l2_fourcc('R', 'G', 'B', 'P')      /* 16  RGB-5-6-5     */
#define V4L2_PIX_FMT_RGB555X v4l2_fourcc('R', 'G', 'B', 'Q')     /* 16  RGB-5-5-5 BE  */
#define V4L2_PIX_FMT_ARGB555X v4l2_fourcc_be('A', 'R', '1', '5') /* 16  ARGB-5-5-5 BE */
#define V4L2_PIX_FMT_XRGB555X v4l2_fourcc_be('X', 'R', '1', '5') /* 16  XRGB-5-5-5 BE */
#define V4L2_PIX_FMT_RGB565X v4l2_fourcc('R', 'G', 'B', 'R')     /* 16  RGB-5-6-5 BE  */
#define V4L2_PIX_FMT_BGR666 v4l2_fourcc('B', 'G', 'R', 'H')      /* 18  BGR-6-6-6      */
#define V4L2_PIX_FMT_BGR24 v4l2_fourcc('B', 'G', 'R', '3')       /* 24  BGR-8-8-8     */
#define V4L2_PIX_FMT_RGB24 v4l2_fourcc('R', 'G', 'B', '3')       /* 24  RGB-8-8-8     */
#define V4L2_PIX_FMT_BGR32 v4l2_fourcc('B', 'G', 'R', '4')       /* 32  BGR-8-8-8-8   */
#define V4L2_PIX_FMT_ABGR32 v4l2_fourcc('A', 'R', '2', '4')      /* 32  BGRA-8-8-8-8  */
#define V4L2_PIX_FMT_XBGR32 v4l2_fourcc('X', 'R', '2', '4')      /* 32  BGRX-8-8-8-8  */
#define V4L2_PIX_FMT_BGRA32 v4l2_fourcc('R', 'A', '2', '4')      /* 32  ABGR-8-8-8-8  */
#define V4L2_PIX_FMT_BGRX32 v4l2_fourcc('R', 'X', '2', '4')      /* 32  XBGR-8-8-8-8  */
#define V4L2_PIX_FMT_RGB32 v4l2_fourcc('R', 'G', 'B', '4')       /* 32  RGB-8-8-8-8   */
#define V4L2_PIX_FMT_RGBA32 v4l2_fourcc('A', 'B', '2', '4')      /* 32  RGBA-8-8-8-8  */
#define V4L2_PIX_FMT_RGBX32 v4l2_fourcc('X', 'B', '2', '4')      /* 32  RGBX-8-8-8-8  */
#define V4L2_PIX_FMT_ARGB32 v4l2_fourcc('B', 'A', '2', '4')      /* 32  ARGB-8-8-8-8  */
#define V4L2_PIX_FMT_XRGB32 v4l2_fourcc('B', 'X', '2', '4')      /* 32  XRGB-8-8-8-8  */

/* Grey formats */
#define V4L2_PIX_FMT_GREY v4l2_fourcc('G', 'R', 'E', 'Y')      /*  8  Greyscale     */
#define V4L2_PIX_FMT_Y4 v4l2_fourcc('Y', '0', '4', ' ')        /*  4  Greyscale     */
#define V4L2_PIX_FMT_Y6 v4l2_fourcc('Y', '0', '6', ' ')        /*  6  Greyscale     */
#define V4L2_PIX_FMT_Y10 v4l2_fourcc('Y', '1', '0', ' ')       /* 10  Greyscale     */
#define V4L2_PIX_FMT_Y12 v4l2_fourcc('Y', '1', '2', ' ')       /* 12  Greyscale     */
#define V4L2_PIX_FMT_Y14 v4l2_fourcc('Y', '1', '4', ' ')       /* 14  Greyscale     */
#define V4L2_PIX_FMT_Y16 v4l2_fourcc('Y', '1', '6', ' ')       /* 16  Greyscale     */
#define V4L2_PIX_FMT_Y16_BE v4l2_fourcc_be('Y', '1', '6', ' ') /* 16  Greyscale BE  */

/* Grey bit-packed formats */
#define V4L2_PIX_FMT_Y10BPACK v4l2_fourcc('Y', '1', '0', 'B') /* 10  Greyscale bit-packed */
#define V4L2_PIX_FMT_Y10P v4l2_fourcc('Y', '1', '0', 'P')     /* 10  Greyscale, MIPI RAW10 packed */

/* Palette formats */
#define V4L2_PIX_FMT_PAL8 v4l2_fourcc('P', 'A', 'L', '8') /*  8  8-bit palette */

/* Chrominance formats */
#define V4L2_PIX_FMT_UV8 v4l2_fourcc('U', 'V', '8', ' ') /*  8  UV 4:4 */

/* Luminance+Chrominance formats */
#define V4L2_PIX_FMT_YUYV v4l2_fourcc('Y', 'U', 'Y', 'V')   /* 16  YUV 4:2:2     */
#define V4L2_PIX_FMT_YYUV v4l2_fourcc('Y', 'Y', 'U', 'V')   /* 16  YUV 4:2:2     */
#define V4L2_PIX_FMT_YVYU v4l2_fourcc('Y', 'V', 'Y', 'U')   /* 16 YVU 4:2:2 */
#define V4L2_PIX_FMT_UYVY v4l2_fourcc('U', 'Y', 'V', 'Y')   /* 16  YUV 4:2:2     */
#define V4L2_PIX_FMT_VYUY v4l2_fourcc('V', 'Y', 'U', 'Y')   /* 16  YUV 4:2:2     */
#define V4L2_PIX_FMT_Y41P v4l2_fourcc('Y', '4', '1', 'P')   /* 12  YUV 4:1:1     */
#define V4L2_PIX_FMT_YUV444 v4l2_fourcc('Y', '4', '4', '4') /* 16  xxxxyyyy uuuuvvvv */
#define V4L2_PIX_FMT_YUV555 v4l2_fourcc('Y', 'U', 'V', 'O') /* 16  YUV-5-5-5     */
#define V4L2_PIX_FMT_YUV565 v4l2_fourcc('Y', 'U', 'V', 'P') /* 16  YUV-5-6-5     */
#define V4L2_PIX_FMT_YUV32 v4l2_fourcc('Y', 'U', 'V', '4')  /* 32  YUV-8-8-8-8   */
#define V4L2_PIX_FMT_AYUV32 v4l2_fourcc('A', 'Y', 'U', 'V') /* 32  AYUV-8-8-8-8  */
#define V4L2_PIX_FMT_XYUV32 v4l2_fourcc('X', 'Y', 'U', 'V') /* 32  XYUV-8-8-8-8  */
#define V4L2_PIX_FMT_VUYA32 v4l2_fourcc('V', 'U', 'Y', 'A') /* 32  VUYA-8-8-8-8  */
#define V4L2_PIX_FMT_VUYX32 v4l2_fourcc('V', 'U', 'Y', 'X') /* 32  VUYX-8-8-8-8  */
#define V4L2_PIX_FMT_HI240 v4l2_fourcc('H', 'I', '2', '4')  /*  8  8-bit color   */
#define V4L2_PIX_FMT_HM12 v4l2_fourcc('H', 'M', '1', '2')   /*  8  YUV 4:2:0 16x16 macroblocks */
#define V4L2_PIX_FMT_M420 v4l2_fourcc('M', '4', '2', '0')   /* 12  YUV 4:2:0 2 lines y, 1 line uv interleaved */

/* two planes -- one Y, one Cr + Cb interleaved  */
#define V4L2_PIX_FMT_NV12 v4l2_fourcc('N', 'V', '1', '2') /* 12  Y/CbCr 4:2:0  */
#define V4L2_PIX_FMT_NV21 v4l2_fourcc('N', 'V', '2', '1') /* 12  Y/CrCb 4:2:0  */
#define V4L2_PIX_FMT_NV16 v4l2_fourcc('N', 'V', '1', '6') /* 16  Y/CbCr 4:2:2  */
#define V4L2_PIX_FMT_NV61 v4l2_fourcc('N', 'V', '6', '1') /* 16  Y/CrCb 4:2:2  */
#define V4L2_PIX_FMT_NV24 v4l2_fourcc('N', 'V', '2', '4') /* 24  Y/CbCr 4:4:4  */
#define V4L2_PIX_FMT_NV42 v4l2_fourcc('N', 'V', '4', '2') /* 24  Y/CrCb 4:4:4  */

/* two non contiguous planes - one Y, one Cr + Cb interleaved  */
#define V4L2_PIX_FMT_NV12M v4l2_fourcc('N', 'M', '1', '2')        /* 12  Y/CbCr 4:2:0  */
#define V4L2_PIX_FMT_NV21M v4l2_fourcc('N', 'M', '2', '1')        /* 21  Y/CrCb 4:2:0  */
#define V4L2_PIX_FMT_NV16M v4l2_fourcc('N', 'M', '1', '6')        /* 16  Y/CbCr 4:2:2  */
#define V4L2_PIX_FMT_NV61M v4l2_fourcc('N', 'M', '6', '1')        /* 16  Y/CrCb 4:2:2  */
#define V4L2_PIX_FMT_NV12MT v4l2_fourcc('T', 'M', '1', '2')       /* 12  Y/CbCr 4:2:0 64x32 macroblocks */
#define V4L2_PIX_FMT_NV12MT_16X16 v4l2_fourcc('V', 'M', '1', '2') /* 12  Y/CbCr 4:2:0 16x16 macroblocks */

/* three planes - Y Cb, Cr */
#define V4L2_PIX_FMT_YUV410 v4l2_fourcc('Y', 'U', 'V', '9')  /*  9  YUV 4:1:0     */
#define V4L2_PIX_FMT_YVU410 v4l2_fourcc('Y', 'V', 'U', '9')  /*  9  YVU 4:1:0     */
#define V4L2_PIX_FMT_YUV411P v4l2_fourcc('4', '1', '1', 'P') /* 12  YVU411 planar */
#define V4L2_PIX_FMT_YUV420 v4l2_fourcc('Y', 'U', '1', '2')  /* 12  YUV 4:2:0     */
#define V4L2_PIX_FMT_YVU420 v4l2_fourcc('Y', 'V', '1', '2')  /* 12  YVU 4:2:0     */
#define V4L2_PIX_FMT_YUV422P v4l2_fourcc('4', '2', '2', 'P') /* 16  YVU422 planar */

/* three non contiguous planes - Y, Cb, Cr */
#define V4L2_PIX_FMT_YUV420M v4l2_fourcc('Y', 'M', '1', '2') /* 12  YUV420 planar */
#define V4L2_PIX_FMT_YVU420M v4l2_fourcc('Y', 'M', '2', '1') /* 12  YVU420 planar */
#define V4L2_PIX_FMT_YUV422M v4l2_fourcc('Y', 'M', '1', '6') /* 16  YUV422 planar */
#define V4L2_PIX_FMT_YVU422M v4l2_fourcc('Y', 'M', '6', '1') /* 16  YVU422 planar */
#define V4L2_PIX_FMT_YUV444M v4l2_fourcc('Y', 'M', '2', '4') /* 24  YUV444 planar */
#define V4L2_PIX_FMT_YVU444M v4l2_fourcc('Y', 'M', '4', '2') /* 24  YVU444 planar */

/* Bayer formats - see http://www.siliconimaging.com/RGB%20Bayer.htm */
#define V4L2_PIX_FMT_SBGGR8 v4l2_fourcc('B', 'A', '8', '1')  /*  8  BGBG.. GRGR.. */
#define V4L2_PIX_FMT_SGBRG8 v4l2_fourcc('G', 'B', 'R', 'G')  /*  8  GBGB.. RGRG.. */
#define V4L2_PIX_FMT_SGRBG8 v4l2_fourcc('G', 'R', 'B', 'G')  /*  8  GRGR.. BGBG.. */
#define V4L2_PIX_FMT_SRGGB8 v4l2_fourcc('R', 'G', 'G', 'B')  /*  8  RGRG.. GBGB.. */
#define V4L2_PIX_FMT_SBGGR10 v4l2_fourcc('B', 'G', '1', '0') /* 10  BGBG.. GRGR.. */
#define V4L2_PIX_FMT_SGBRG10 v4l2_fourcc('G', 'B', '1', '0') /* 10  GBGB.. RGRG.. */
#define V4L2_PIX_FMT_SGRBG10 v4l2_fourcc('B', 'A', '1', '0') /* 10  GRGR.. BGBG.. */
#define V4L2_PIX_FMT_SRGGB10 v4l2_fourcc('R', 'G', '1', '0') /* 10  RGRG.. GBGB.. */
/* 10bit raw bayer packed, 5 bytes for every 4 pixels */
#define V4L2_PIX_FMT_SBGGR10P v4l2_fourcc('p', 'B', 'A', 'A')
#define V4L2_PIX_FMT_SGBRG10P v4l2_fourcc('p', 'G', 'A', 'A')
#define V4L2_PIX_FMT_SGRBG10P v4l2_fourcc('p', 'g', 'A', 'A')
#define V4L2_PIX_FMT_SRGGB10P v4l2_fourcc('p', 'R', 'A', 'A')
/* 10bit raw bayer a-law compressed to 8 bits */
#define V4L2_PIX_FMT_SBGGR10ALAW8 v4l2_fourcc('a', 'B', 'A', '8')
#define V4L2_PIX_FMT_SGBRG10ALAW8 v4l2_fourcc('a', 'G', 'A', '8')
#define V4L2_PIX_FMT_SGRBG10ALAW8 v4l2_fourcc('a', 'g', 'A', '8')
#define V4L2_PIX_FMT_SRGGB10ALAW8 v4l2_fourcc('a', 'R', 'A', '8')
/* 10bit raw bayer DPCM compressed to 8 bits */
#define V4L2_PIX_FMT_SBGGR10DPCM8 v4l2_fourcc('b', 'B', 'A', '8')
#define V4L2_PIX_FMT_SGBRG10DPCM8 v4l2_fourcc('b', 'G', 'A', '8')
#define V4L2_PIX_FMT_SGRBG10DPCM8 v4l2_fourcc('B', 'D', '1', '0')
#define V4L2_PIX_FMT_SRGGB10DPCM8 v4l2_fourcc('b', 'R', 'A', '8')
#define V4L2_PIX_FMT_SBGGR12 v4l2_fourcc('B', 'G', '1', '2') /* 12  BGBG.. GRGR.. */
#define V4L2_PIX_FMT_SGBRG12 v4l2_fourcc('G', 'B', '1', '2') /* 12  GBGB.. RGRG.. */
#define V4L2_PIX_FMT_SGRBG12 v4l2_fourcc('B', 'A', '1', '2') /* 12  GRGR.. BGBG.. */
#define V4L2_PIX_FMT_SRGGB12 v4l2_fourcc('R', 'G', '1', '2') /* 12  RGRG.. GBGB.. */
/* 12bit raw bayer packed, 6 bytes for every 4 pixels */
#define V4L2_PIX_FMT_SBGGR12P v4l2_fourcc('p', 'B', 'C', 'C')
#define V4L2_PIX_FMT_SGBRG12P v4l2_fourcc('p', 'G', 'C', 'C')
#define V4L2_PIX_FMT_SGRBG12P v4l2_fourcc('p', 'g', 'C', 'C')
#define V4L2_PIX_FMT_SRGGB12P v4l2_fourcc('p', 'R', 'C', 'C')
#define V4L2_PIX_FMT_SBGGR14 v4l2_fourcc('B', 'G', '1', '4') /* 14  BGBG.. GRGR.. */
#define V4L2_PIX_FMT_SGBRG14 v4l2_fourcc('G', 'B', '1', '4') /* 14  GBGB.. RGRG.. */
#define V4L2_PIX_FMT_SGRBG14 v4l2_fourcc('G', 'R', '1', '4') /* 14  GRGR.. BGBG.. */
#define V4L2_PIX_FMT_SRGGB14 v4l2_fourcc('R', 'G', '1', '4') /* 14  RGRG.. GBGB.. */
/* 14bit raw bayer packed, 7 bytes for every 4 pixels */
#define V4L2_PIX_FMT_SBGGR14P v4l2_fourcc('p', 'B', 'E', 'E')
#define V4L2_PIX_FMT_SGBRG14P v4l2_fourcc('p', 'G', 'E', 'E')
#define V4L2_PIX_FMT_SGRBG14P v4l2_fourcc('p', 'g', 'E', 'E')
#define V4L2_PIX_FMT_SRGGB14P v4l2_fourcc('p', 'R', 'E', 'E')
#define V4L2_PIX_FMT_SBGGR16 v4l2_fourcc('B', 'Y', 'R', '2') /* 16  BGBG.. GRGR.. */
#define V4L2_PIX_FMT_SGBRG16 v4l2_fourcc('G', 'B', '1', '6') /* 16  GBGB.. RGRG.. */
#define V4L2_PIX_FMT_SGRBG16 v4l2_fourcc('G', 'R', '1', '6') /* 16  GRGR.. BGBG.. */
#define V4L2_PIX_FMT_SRGGB16 v4l2_fourcc('R', 'G', '1', '6') /* 16  RGRG.. GBGB.. */

/* HSV formats */
#define V4L2_PIX_FMT_HSV24 v4l2_fourcc('H', 'S', 'V', '3')
#define V4L2_PIX_FMT_HSV32 v4l2_fourcc('H', 'S', 'V', '4')

/* compressed formats */
#define V4L2_PIX_FMT_MJPEG v4l2_fourcc('M', 'J', 'P', 'G')          /* Motion-JPEG   */
#define V4L2_PIX_FMT_JPEG v4l2_fourcc('J', 'P', 'E', 'G')           /* JFIF JPEG     */
#define V4L2_PIX_FMT_DV v4l2_fourcc('d', 'v', 's', 'd')             /* 1394          */
#define V4L2_PIX_FMT_MPEG v4l2_fourcc('M', 'P', 'E', 'G')           /* MPEG-1/2/4 Multiplexed */
#define V4L2_PIX_FMT_H265 v4l2_fourcc('H', '2', '6', '5')           /* H265 with start codes */
#define V4L2_PIX_FMT_H264 v4l2_fourcc('H', '2', '6', '4')           /* H264 with start codes */
#define V4L2_PIX_FMT_H264_NO_SC v4l2_fourcc('A', 'V', 'C', '1')     /* H264 without start codes */
#define V4L2_PIX_FMT_H264_MVC v4l2_fourcc('M', '2', '6', '4')       /* H264 MVC */
#define V4L2_PIX_FMT_H263 v4l2_fourcc('H', '2', '6', '3')           /* H263          */
#define V4L2_PIX_FMT_MPEG1 v4l2_fourcc('M', 'P', 'G', '1')          /* MPEG-1 ES     */
#define V4L2_PIX_FMT_MPEG2 v4l2_fourcc('M', 'P', 'G', '2')          /* MPEG-2 ES     */
#define V4L2_PIX_FMT_MPEG2_SLICE v4l2_fourcc('M', 'G', '2', 'S')    /* MPEG-2 parsed slice data */
#define V4L2_PIX_FMT_MPEG4 v4l2_fourcc('M', 'P', 'G', '4')          /* MPEG-4 part 2 ES */
#define V4L2_PIX_FMT_XVID v4l2_fourcc('X', 'V', 'I', 'D')           /* Xvid           */
#define V4L2_PIX_FMT_VC1_ANNEX_G v4l2_fourcc('V', 'C', '1', 'G')    /* SMPTE 421M Annex G compliant stream */
#define V4L2_PIX_FMT_VC1_ANNEX_L v4l2_fourcc('V', 'C', '1', 'L')    /* SMPTE 421M Annex L compliant stream */
#define V4L2_PIX_FMT_VP8 v4l2_fourcc('V', 'P', '8', '0')            /* VP8 */
#define V4L2_PIX_FMT_VP9 v4l2_fourcc('V', 'P', '9', '0')            /* VP9 */
#define V4L2_PIX_FMT_HEVC v4l2_fourcc('H', 'E', 'V', 'C')           /* HEVC aka H.265 */
#define V4L2_PIX_FMT_FWHT v4l2_fourcc('F', 'W', 'H', 'T')           /* Fast Walsh Hadamard Transform (vicodec) */
#define V4L2_PIX_FMT_FWHT_STATELESS v4l2_fourcc('S', 'F', 'W', 'H') /* Stateless FWHT (vicodec) */

/*  Vendor-specific formats   */
#define V4L2_PIX_FMT_CPIA1 v4l2_fourcc('C', 'P', 'I', 'A')        /* cpia1 YUV */
#define V4L2_PIX_FMT_WNVA v4l2_fourcc('W', 'N', 'V', 'A')         /* Winnov hw compress */
#define V4L2_PIX_FMT_SN9C10X v4l2_fourcc('S', '9', '1', '0')      /* SN9C10x compression */
#define V4L2_PIX_FMT_SN9C20X_I420 v4l2_fourcc('S', '9', '2', '0') /* SN9C20x YUV 4:2:0 */
#define V4L2_PIX_FMT_PWC1 v4l2_fourcc('P', 'W', 'C', '1')         /* pwc older webcam */
#define V4L2_PIX_FMT_PWC2 v4l2_fourcc('P', 'W', 'C', '2')         /* pwc newer webcam */
#define V4L2_PIX_FMT_ET61X251 v4l2_fourcc('E', '6', '2', '5')     /* ET61X251 compression */
#define V4L2_PIX_FMT_SPCA501 v4l2_fourcc('S', '5', '0', '1')      /* YUYV per line */
#define V4L2_PIX_FMT_SPCA505 v4l2_fourcc('S', '5', '0', '5')      /* YYUV per line */
#define V4L2_PIX_FMT_SPCA508 v4l2_fourcc('S', '5', '0', '8')      /* YUVY per line */
#define V4L2_PIX_FMT_SPCA561 v4l2_fourcc('S', '5', '6', '1')      /* compressed GBRG bayer */
#define V4L2_PIX_FMT_PAC207 v4l2_fourcc('P', '2', '0', '7')       /* compressed BGGR bayer */
#define V4L2_PIX_FMT_MR97310A v4l2_fourcc('M', '3', '1', '0')     /* compressed BGGR bayer */
#define V4L2_PIX_FMT_JL2005BCD v4l2_fourcc('J', 'L', '2', '0')    /* compressed RGGB bayer */
#define V4L2_PIX_FMT_SN9C2028 v4l2_fourcc('S', 'O', 'N', 'X')     /* compressed GBRG bayer */
#define V4L2_PIX_FMT_SQ905C v4l2_fourcc('9', '0', '5', 'C')       /* compressed RGGB bayer */
#define V4L2_PIX_FMT_PJPG v4l2_fourcc('P', 'J', 'P', 'G')         /* Pixart 73xx JPEG */
#define V4L2_PIX_FMT_OV511 v4l2_fourcc('O', '5', '1', '1')        /* ov511 JPEG */
#define V4L2_PIX_FMT_OV518 v4l2_fourcc('O', '5', '1', '8')        /* ov518 JPEG */
#define V4L2_PIX_FMT_STV0680 v4l2_fourcc('S', '6', '8', '0')      /* stv0680 bayer */
#define V4L2_PIX_FMT_TM6000 v4l2_fourcc('T', 'M', '6', '0')       /* tm5600/tm60x0 */
#define V4L2_PIX_FMT_CIT_YYVYUY v4l2_fourcc('C', 'I', 'T', 'V')   /* one line of Y then 1 line of VYUY */
#define V4L2_PIX_FMT_KONICA420 v4l2_fourcc('K', 'O', 'N', 'I')    /* YUV420 planar in blocks of 256 pixels */
#define V4L2_PIX_FMT_JPGL v4l2_fourcc('J', 'P', 'G', 'L')         /* JPEG-Lite */
#define V4L2_PIX_FMT_SE401 v4l2_fourcc('S', '4', '0', '1')        /* se401 janggu compressed rgb */
#define V4L2_PIX_FMT_S5C_UYVY_JPG v4l2_fourcc('S', '5', 'C', 'I') /* S5C73M3 interleaved UYVY/JPEG */
#define V4L2_PIX_FMT_Y8I v4l2_fourcc('Y', '8', 'I', ' ')          /* Greyscale 8-bit L/R interleaved */
#define V4L2_PIX_FMT_Y12I v4l2_fourcc('Y', '1', '2', 'I')         /* Greyscale 12-bit L/R interleaved */
#define V4L2_PIX_FMT_Z16 v4l2_fourcc('Z', '1', '6', ' ')          /* Depth data 16-bit */
#define V4L2_PIX_FMT_MT21C v4l2_fourcc('M', 'T', '2', '1')        /* Mediatek compressed block mode  */
#define V4L2_PIX_FMT_INZI v4l2_fourcc('I', 'N', 'Z', 'I')         /* Intel Planar Greyscale 10-bit and Depth 16-bit */
#define V4L2_PIX_FMT_SUNXI_TILED_NV12 v4l2_fourcc('S', 'T', '1', '2') /* Sunxi Tiled NV12 Format */
#define V4L2_PIX_FMT_CNF4 v4l2_fourcc('C', 'N', 'F', '4') /* Intel 4-bit packed depth confidence information */

/* 10bit raw bayer packed, 32 bytes for every 25 pixels, last LSB 6 bits unused */
#define V4L2_PIX_FMT_IPU3_SBGGR10 v4l2_fourcc('i', 'p', '3', 'b') /* IPU3 packed 10-bit BGGR bayer */
#define V4L2_PIX_FMT_IPU3_SGBRG10 v4l2_fourcc('i', 'p', '3', 'g') /* IPU3 packed 10-bit GBRG bayer */
#define V4L2_PIX_FMT_IPU3_SGRBG10 v4l2_fourcc('i', 'p', '3', 'G') /* IPU3 packed 10-bit GRBG bayer */
#define V4L2_PIX_FMT_IPU3_SRGGB10 v4l2_fourcc('i', 'p', '3', 'r') /* IPU3 packed 10-bit RGGB bayer */

/* SDR formats - used only for Software Defined Radio devices */
#define V4L2_SDR_FMT_CU8 v4l2_fourcc('C', 'U', '0', '8')     /* IQ u8 */
#define V4L2_SDR_FMT_CU16LE v4l2_fourcc('C', 'U', '1', '6')  /* IQ u16le */
#define V4L2_SDR_FMT_CS8 v4l2_fourcc('C', 'S', '0', '8')     /* complex s8 */
#define V4L2_SDR_FMT_CS14LE v4l2_fourcc('C', 'S', '1', '4')  /* complex s14le */
#define V4L2_SDR_FMT_RU12LE v4l2_fourcc('R', 'U', '1', '2')  /* real u12le */
#define V4L2_SDR_FMT_PCU16BE v4l2_fourcc('P', 'C', '1', '6') /* planar complex u16be */
#define V4L2_SDR_FMT_PCU18BE v4l2_fourcc('P', 'C', '1', '8') /* planar complex u18be */
#define V4L2_SDR_FMT_PCU20BE v4l2_fourcc('P', 'C', '2', '0') /* planar complex u20be */

/* Touch formats - used for Touch devices */
#define V4L2_TCH_FMT_DELTA_TD16 v4l2_fourcc('T', 'D', '1', '6') /* 16-bit signed deltas */
#define V4L2_TCH_FMT_DELTA_TD08 v4l2_fourcc('T', 'D', '0', '8') /* 8-bit signed deltas */
#define V4L2_TCH_FMT_TU16 v4l2_fourcc('T', 'U', '1', '6')       /* 16-bit unsigned touch data */
#define V4L2_TCH_FMT_TU08 v4l2_fourcc('T', 'U', '0', '8')       /* 8-bit unsigned touch data */

/* Meta-data formats */
#define V4L2_META_FMT_VSP1_HGO v4l2_fourcc('V', 'S', 'P', 'H') /* R-Car VSP1 1-D Histogram */
#define V4L2_META_FMT_VSP1_HGT v4l2_fourcc('V', 'S', 'P', 'T') /* R-Car VSP1 2-D Histogram */
#define V4L2_META_FMT_UVC v4l2_fourcc('U', 'V', 'C', 'H')      /* UVC Payload Header metadata */
#define V4L2_META_FMT_D4XX v4l2_fourcc('D', '4', 'X', 'X')     /* D4XX Payload Header metadata */
#define V4L2_META_FMT_VIVID v4l2_fourcc('V', 'I', 'V', 'D')    /* Vivid Metadata */

/* priv field value to indicates that subsequent fields are valid. */
#define V4L2_PIX_FMT_PRIV_MAGIC 0xfeedcafe

/* Flags */
#define V4L2_PIX_FMT_FLAG_PREMUL_ALPHA 0x00000001
#define V4L2_PIX_FMT_FLAG_SET_CSC 0x00000002

/*
 *    F O R M A T   E N U M E R A T I O N
 */
struct v4l2_fmtdesc {
    __u32 index; /* Format number      */
    __u32 type;  /* enum v4l2_buf_type */
    __u32 flags;
    __u8 description[32]; /* Description string */
    __u32 pixelformat;    /* Format fourcc      */
    __u32 mbus_code;      /* Media bus code    */
    __u32 reserved[3];
};

#define V4L2_FMT_FLAG_COMPRESSED 0x0001
#define V4L2_FMT_FLAG_EMULATED 0x0002
#define V4L2_FMT_FLAG_CONTINUOUS_BYTESTREAM 0x0004
#define V4L2_FMT_FLAG_DYN_RESOLUTION 0x0008
#define V4L2_FMT_FLAG_ENC_CAP_FRAME_INTERVAL 0x0010
#define V4L2_FMT_FLAG_CSC_COLORSPACE 0x0020
#define V4L2_FMT_FLAG_CSC_XFER_FUNC 0x0040
#define V4L2_FMT_FLAG_CSC_YCBCR_ENC 0x0080
#define V4L2_FMT_FLAG_CSC_HSV_ENC V4L2_FMT_FLAG_CSC_YCBCR_ENC
#define V4L2_FMT_FLAG_CSC_QUANTIZATION 0x0100

/* Frame Size and frame rate enumeration */
/*
 *    F R A M E   S I Z E   E N U M E R A T I O N
 */
enum v4l2_frmsizetypes {
    V4L2_FRMSIZE_TYPE_DISCRETE = 1,
    V4L2_FRMSIZE_TYPE_CONTINUOUS = 2,
    V4L2_FRMSIZE_TYPE_STEPWISE = 3,
};

struct v4l2_frmsize_discrete {
    __u32 width;  /* Frame width [pixel] */
    __u32 height; /* Frame height [pixel] */
};

struct v4l2_frmsize_stepwise {
    __u32 min_width;   /* Minimum frame width [pixel] */
    __u32 max_width;   /* Maximum frame width [pixel] */
    __u32 step_width;  /* Frame width step size [pixel] */
    __u32 min_height;  /* Minimum frame height [pixel] */
    __u32 max_height;  /* Maximum frame height [pixel] */
    __u32 step_height; /* Frame height step size [pixel] */
};

struct v4l2_frmsizeenum {
    __u32 index;        /* Frame size number */
    __u32 pixel_format; /* Pixel format */
    __u32 type;         /* Frame size type the device supports. */

    union { /* Frame size */
        struct v4l2_frmsize_discrete discrete;
        struct v4l2_frmsize_stepwise stepwise;
    };

    __u32 reserved[2]; /* Reserved space for future use */
};

/*
 *    F R A M E   R A T E   E N U M E R A T I O N
 */
enum v4l2_frmivaltypes {
    V4L2_FRMIVAL_TYPE_DISCRETE = 1,
    V4L2_FRMIVAL_TYPE_CONTINUOUS = 2,
    V4L2_FRMIVAL_TYPE_STEPWISE = 3,
};

struct v4l2_frmival_stepwise {
    struct v4l2_fract min;  /* Minimum frame interval [s] */
    struct v4l2_fract max;  /* Maximum frame interval [s] */
    struct v4l2_fract step; /* Frame interval step size [s] */
};

struct v4l2_frmivalenum {
    __u32 index;        /* Frame format index */
    __u32 pixel_format; /* Pixel format */
    __u32 width;        /* Frame width */
    __u32 height;       /* Frame height */
    __u32 type;         /* Frame interval type the device supports. */

    union { /* Frame interval */
        struct v4l2_fract discrete;
        struct v4l2_frmival_stepwise stepwise;
    };

    __u32 reserved[2]; /* Reserved space for future use */
};

/*
 *    T I M E C O D E
 */
struct v4l2_timecode {
    __u32 type;
    __u32 flags;
    __u8 frames;
    __u8 seconds;
    __u8 minutes;
    __u8 hours;
    __u8 userbits[4];
};

/*  Type  */
#define V4L2_TC_TYPE_24FPS 1
#define V4L2_TC_TYPE_25FPS 2
#define V4L2_TC_TYPE_30FPS 3
#define V4L2_TC_TYPE_50FPS 4
#define V4L2_TC_TYPE_60FPS 5

/*  Flags  */
#define V4L2_TC_FLAG_DROPFRAME 0x0001 /* "drop-frame" mode */
#define V4L2_TC_FLAG_COLORFRAME 0x0002
#define V4L2_TC_USERBITS_field 0x000C
#define V4L2_TC_USERBITS_USERDEFINED 0x0000
#define V4L2_TC_USERBITS_8BITCHARS 0x0008
/* The above is based on SMPTE timecodes */

struct v4l2_jpegcompression {
    int quality;

    int APPn;          /* Number of APP segment to be written,
                        * must be 0..15 */
    int APP_len;       /* Length of data in JPEG APPn segment */
    char APP_data[60]; /* Data in the JPEG APPn segment. */

    int COM_len;       /* Length of data in JPEG COM segment */
    char COM_data[60]; /* Data in JPEG COM segment */

    __u32 jpeg_markers; /* Which markers should go into the JPEG
                         * output. Unless you exactly know what
                         * you do, leave them untouched.
                         * Including less markers will make the
                         * resulting code smaller, but there will
                         * be fewer applications which can read it.
                         * The presence of the APP and COM marker
                         * is influenced by APP_len and COM_len
                         * ONLY, not by this property! */

#define V4L2_JPEG_MARKER_DHT (1 << 3) /* Define Huffman Tables */
#define V4L2_JPEG_MARKER_DQT (1 << 4) /* Define Quantization Tables */
#define V4L2_JPEG_MARKER_DRI (1 << 5) /* Define Restart Interval */
#define V4L2_JPEG_MARKER_COM (1 << 6) /* Comment segment */
#define V4L2_JPEG_MARKER_APP                                                                                           \
    (1 << 7) /* App segment, driver will                                                                               \
              * always use APP0 */
};

/*
 *    M E M O R Y - M A P P I N G   B U F F E R S
 */

#ifdef __KERNEL__
/*
 * This corresponds to the user space version of timeval
 * for 64-bit time_t. sparc64 is different from everyone
 * else, using the microseconds in the wrong half of the
 * second 64-bit word.
 */
struct __kernel_v4l2_timeval {
    long long tv_sec;
#if defined(__sparc__) && defined(__arch64__)
    int tv_usec;
    int __pad;
#else
    long long tv_usec;
#endif
};
#endif

struct v4l2_requestbuffers {
    __u32 count;
    __u32 type;   /* enum v4l2_buf_type */
    __u32 memory; /* enum v4l2_memory */
    __u32 capabilities;
    __u32 reserved[1];
};

/* capabilities for struct v4l2_requestbuffers and v4l2_create_buffers */
#define V4L2_BUF_CAP_SUPPORTS_MMAP (1 << 0)
#define V4L2_BUF_CAP_SUPPORTS_USERPTR (1 << 1)
#define V4L2_BUF_CAP_SUPPORTS_DMABUF (1 << 2)
#define V4L2_BUF_CAP_SUPPORTS_REQUESTS (1 << 3)
#define V4L2_BUF_CAP_SUPPORTS_ORPHANED_BUFS (1 << 4)
#define V4L2_BUF_CAP_SUPPORTS_M2M_HOLD_CAPTURE_BUF (1 << 5)
#define V4L2_BUF_CAP_SUPPORTS_MMAP_CACHE_HINTS (1 << 6)

/**
 * struct v4l2_plane - plane info for multi-planar buffers
 * @bytesused:        number of bytes occupied by data in the plane (payload)
 * @length:        size of this plane (NOT the payload) in bytes
 * @mem_offset:        when memory in the associated struct v4l2_buffer is
 *            V4L2_MEMORY_MMAP, equals the offset from the start of
 *            the device memory for this plane (or is a "cookie" that
 *            should be passed to mmap() called on the video node)
 * @userptr:        when memory is V4L2_MEMORY_USERPTR, a userspace pointer
 *            pointing to this plane
 * @fd:            when memory is V4L2_MEMORY_DMABUF, a userspace file
 *            descriptor associated with this plane
 * @data_offset:    offset in the plane to the start of data; usually 0,
 *            unless there is a header in front of the data
 *
 * Multi-planar buffers consist of one or more planes, e.g. an YCbCr buffer
 * with two planes can have one plane for Y, and another for interleaved CbCr
 * components. Each plane can reside in a separate memory buffer, or even in
 * a completely separate memory node (e.g. in embedded devices).
 */
struct v4l2_plane {
    __u32 bytesused;
    __u32 length;
    union {
        __u32 mem_offset;
        unsigned long userptr;
        __s32 fd;
    } m;
    __u32 data_offset;
    __u32 reserved[11];
};

/**
 * struct v4l2_buffer - video buffer info
 * @index:    id number of the buffer
 * @type:    enum v4l2_buf_type; buffer type (type == *_MPLANE for
 *        multiplanar buffers);
 * @bytesused:    number of bytes occupied by data in the buffer (payload);
 *        unused (set to 0) for multiplanar buffers
 * @flags:    buffer informational flags
 * @field:    enum v4l2_field; field order of the image in the buffer
 * @timestamp:    frame timestamp
 * @timecode:    frame timecode
 * @sequence:    sequence count of this frame
 * @memory:    enum v4l2_memory; the method, in which the actual video data is
 *        passed
 * @offset:    for non-multiplanar buffers with memory == V4L2_MEMORY_MMAP;
 *        offset from the start of the device memory for this plane,
 *        (or a "cookie" that should be passed to mmap() as offset)
 * @userptr:    for non-multiplanar buffers with memory == V4L2_MEMORY_USERPTR;
 *        a userspace pointer pointing to this buffer
 * @fd:        for non-multiplanar buffers with memory == V4L2_MEMORY_DMABUF;
 *        a userspace file descriptor associated with this buffer
 * @planes:    for multiplanar buffers; userspace pointer to the array of plane
 *        info structs for this buffer
 * @length:    size in bytes of the buffer (NOT its payload) for single-plane
 *        buffers (when type != *_MPLANE); number of elements in the
 *        planes array for multi-plane buffers
 * @request_fd: fd of the request that this buffer should use
 *
 * Contains data exchanged by application and driver using one of the Streaming
 * I/O methods.
 */
struct v4l2_buffer {
    __u32 index;
    __u32 type;
    __u32 bytesused;
    __u32 flags;
    __u32 field;
#ifdef __KERNEL__
    struct __kernel_v4l2_timeval timestamp;
#else
    struct timeval timestamp;
#endif
    struct v4l2_timecode timecode;
    __u32 sequence;

    /* memory location */
    __u32 memory;
    union {
        __u32 offset;
        unsigned long userptr;
        struct v4l2_plane *planes;
        __s32 fd;
    } m;
    __u32 length;
    __u32 reserved2;
    union {
        __s32 request_fd;
        __u32 reserved;
    };
};

#ifndef __KERNEL__
/**
 * v4l2_timeval_to_ns - Convert timeval to nanoseconds
 * @ts:        pointer to the timeval variable to be converted
 *
 * Returns the scalar nanosecond representation of the timeval
 * parameter.
 */
static inline __u64 v4l2_timeval_to_ns(const struct timeval *tv)
{
    return (__u64)tv->tv_sec * 1000000000ULL + tv->tv_usec * 1000;
}
#endif

/*  Flags for 'flags' field */
/* Buffer is mapped (flag) */
#define V4L2_BUF_FLAG_MAPPED 0x00000001
/* Buffer is queued for processing */
#define V4L2_BUF_FLAG_QUEUED 0x00000002
/* Buffer is ready */
#define V4L2_BUF_FLAG_DONE 0x00000004
/* Image is a keyframe (I-frame) */
#define V4L2_BUF_FLAG_KEYFRAME 0x00000008
/* Image is a P-frame */
#define V4L2_BUF_FLAG_PFRAME 0x00000010
/* Image is a B-frame */
#define V4L2_BUF_FLAG_BFRAME 0x00000020
/* Buffer is ready, but the data contained within is corrupted. */
#define V4L2_BUF_FLAG_ERROR 0x00000040
/* Buffer is added to an unqueued request */
#define V4L2_BUF_FLAG_IN_REQUEST 0x00000080
/* timecode field is valid */
#define V4L2_BUF_FLAG_TIMECODE 0x00000100
/* Don't return the capture buffer until OUTPUT timestamp changes */
#define V4L2_BUF_FLAG_M2M_HOLD_CAPTURE_BUF 0x00000200
/* Buffer is prepared for queuing */
#define V4L2_BUF_FLAG_PREPARED 0x00000400
/* Cache handling flags */
#define V4L2_BUF_FLAG_NO_CACHE_INVALIDATE 0x00000800
#define V4L2_BUF_FLAG_NO_CACHE_CLEAN 0x00001000
/* Timestamp type */
#define V4L2_BUF_FLAG_TIMESTAMP_MASK 0x0000e000
#define V4L2_BUF_FLAG_TIMESTAMP_UNKNOWN 0x00000000
#define V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC 0x00002000
#define V4L2_BUF_FLAG_TIMESTAMP_COPY 0x00004000
/* Timestamp sources. */
#define V4L2_BUF_FLAG_TSTAMP_SRC_MASK 0x00070000
#define V4L2_BUF_FLAG_TSTAMP_SRC_EOF 0x00000000
#define V4L2_BUF_FLAG_TSTAMP_SRC_SOE 0x00010000
/* mem2mem encoder/decoder */
#define V4L2_BUF_FLAG_LAST 0x00100000
/* request_fd is valid */
#define V4L2_BUF_FLAG_REQUEST_FD 0x00800000

/**
 * struct v4l2_exportbuffer - export of video buffer as DMABUF file descriptor
 *
 * @index:    id number of the buffer
 * @type:    enum v4l2_buf_type; buffer type (type == *_MPLANE for
 *        multiplanar buffers);
 * @plane:    index of the plane to be exported, 0 for single plane queues
 * @flags:    flags for newly created file, currently only O_CLOEXEC is
 *        supported, refer to manual of open syscall for more details
 * @fd:        file descriptor associated with DMABUF (set by driver)
 *
 * Contains data used for exporting a video buffer as DMABUF file descriptor.
 * The buffer is identified by a 'cookie' returned by VIDIOC_QUERYBUF
 * (identical to the cookie used to mmap() the buffer to userspace). All
 * reserved fields must be set to zero. The field reserved0 is expected to
 * become a structure 'type' allowing an alternative layout of the structure
 * content. Therefore this field should not be used for any other extensions.
 */
struct v4l2_exportbuffer {
    __u32 type; /* enum v4l2_buf_type */
    __u32 index;
    __u32 plane;
    __u32 flags;
    __s32 fd;
    __u32 reserved[11];
};

/*
 *    O V E R L A Y   P R E V I E W
 */
struct v4l2_framebuffer {
    __u32 capability;
    __u32 flags;
    /* in theory we should pass something like PCI device + memory
     * region + offset instead of some physical address */
    void *base;
    struct {
        __u32 width;
        __u32 height;
        __u32 pixelformat;
        __u32 field;        /* enum v4l2_field */
        __u32 bytesperline; /* for padding, zero if unused */
        __u32 sizeimage;
        __u32 colorspace; /* enum v4l2_colorspace */
        __u32 priv;       /* reserved field, set to 0 */
    } fmt;
};
/*  Flags for the 'capability' field. Read only */
#define V4L2_FBUF_CAP_EXTERNOVERLAY 0x0001
#define V4L2_FBUF_CAP_CHROMAKEY 0x0002
#define V4L2_FBUF_CAP_LIST_CLIPPING 0x0004
#define V4L2_FBUF_CAP_BITMAP_CLIPPING 0x0008
#define V4L2_FBUF_CAP_LOCAL_ALPHA 0x0010
#define V4L2_FBUF_CAP_GLOBAL_ALPHA 0x0020
#define V4L2_FBUF_CAP_LOCAL_INV_ALPHA 0x0040
#define V4L2_FBUF_CAP_SRC_CHROMAKEY 0x0080
/*  Flags for the 'flags' field. */
#define V4L2_FBUF_FLAG_PRIMARY 0x0001
#define V4L2_FBUF_FLAG_OVERLAY 0x0002
#define V4L2_FBUF_FLAG_CHROMAKEY 0x0004
#define V4L2_FBUF_FLAG_LOCAL_ALPHA 0x0008
#define V4L2_FBUF_FLAG_GLOBAL_ALPHA 0x0010
#define V4L2_FBUF_FLAG_LOCAL_INV_ALPHA 0x0020
#define V4L2_FBUF_FLAG_SRC_CHROMAKEY 0x0040

struct v4l2_clip {
    struct v4l2_rect c;
    struct v4l2_clip __user *next;
};

struct v4l2_window {
    struct v4l2_rect w;
    __u32 field; /* enum v4l2_field */
    __u32 chromakey;
    struct v4l2_clip __user *clips;
    __u32 clipcount;
    void __user *bitmap;
    __u8 global_alpha;
};

/*
 *    C A P T U R E   P A R A M E T E R S
 */
struct v4l2_captureparm {
    __u32 capability;               /*  Supported modes */
    __u32 capturemode;              /*  Current mode */
    struct v4l2_fract timeperframe; /*  Time per frame in seconds */
    __u32 extendedmode;             /*  Driver-specific extensions */
    __u32 readbuffers;              /*  # of buffers for read */
    __u32 reserved[4];
};

/*  Flags for 'capability' and 'capturemode' fields */
#define V4L2_MODE_HIGHQUALITY 0x0001 /*  High quality imaging mode */
#define V4L2_CAP_TIMEPERFRAME 0x1000 /*  timeperframe field is supported */

struct v4l2_outputparm {
    __u32 capability;               /*  Supported modes */
    __u32 outputmode;               /*  Current mode */
    struct v4l2_fract timeperframe; /*  Time per frame in seconds */
    __u32 extendedmode;             /*  Driver-specific extensions */
    __u32 writebuffers;             /*  # of buffers for write */
    __u32 reserved[4];
};

/*
 *    I N P U T   I M A G E   C R O P P I N G
 */
struct v4l2_cropcap {
    __u32 type; /* enum v4l2_buf_type */
    struct v4l2_rect bounds;
    struct v4l2_rect defrect;
    struct v4l2_fract pixelaspect;
};

struct v4l2_crop {
    __u32 type; /* enum v4l2_buf_type */
    struct v4l2_rect c;
};

/**
 * struct v4l2_selection - selection info
 * @type:    buffer type (do not use *_MPLANE types)
 * @target:    Selection target, used to choose one of possible rectangles;
 *        defined in v4l2-common.h; V4L2_SEL_TGT_* .
 * @flags:    constraints flags, defined in v4l2-common.h; V4L2_SEL_FLAG_*.
 * @r:        coordinates of selection window
 * @reserved:    for future use, rounds structure size to 64 bytes, set to zero
 *
 * Hardware may use multiple helper windows to process a video stream.
 * The structure is used to exchange this selection areas between
 * an application and a driver.
 */
struct v4l2_selection {
    __u32 type;
    __u32 target;
    __u32 flags;
    struct v4l2_rect r;
    __u32 reserved[9];
};

/*
 *      A N A L O G   V I D E O   S T A N D A R D
 */

typedef __u64 v4l2_std_id;

/*
 * Attention: Keep the V4L2_STD_* bit definitions in sync with
 * include/dt-bindings/display/sdtv-standards.h SDTV_STD_* bit definitions.
 */
/* one bit for each */
#define V4L2_STD_PAL_B ((v4l2_std_id)0x00000001)
#define V4L2_STD_PAL_B1 ((v4l2_std_id)0x00000002)
#define V4L2_STD_PAL_G ((v4l2_std_id)0x00000004)
#define V4L2_STD_PAL_H ((v4l2_std_id)0x00000008)
#define V4L2_STD_PAL_I ((v4l2_std_id)0x00000010)
#define V4L2_STD_PAL_D ((v4l2_std_id)0x00000020)
#define V4L2_STD_PAL_D1 ((v4l2_std_id)0x00000040)
#define V4L2_STD_PAL_K ((v4l2_std_id)0x00000080)

#define V4L2_STD_PAL_M ((v4l2_std_id)0x00000100)
#define V4L2_STD_PAL_N ((v4l2_std_id)0x00000200)
#define V4L2_STD_PAL_Nc ((v4l2_std_id)0x00000400)
#define V4L2_STD_PAL_60 ((v4l2_std_id)0x00000800)

#define V4L2_STD_NTSC_M ((v4l2_std_id)0x00001000)    /* BTSC */
#define V4L2_STD_NTSC_M_JP ((v4l2_std_id)0x00002000) /* EIA-J */
#define V4L2_STD_NTSC_443 ((v4l2_std_id)0x00004000)
#define V4L2_STD_NTSC_M_KR ((v4l2_std_id)0x00008000) /* FM A2 */

#define V4L2_STD_SECAM_B ((v4l2_std_id)0x00010000)
#define V4L2_STD_SECAM_D ((v4l2_std_id)0x00020000)
#define V4L2_STD_SECAM_G ((v4l2_std_id)0x00040000)
#define V4L2_STD_SECAM_H ((v4l2_std_id)0x00080000)
#define V4L2_STD_SECAM_K ((v4l2_std_id)0x00100000)
#define V4L2_STD_SECAM_K1 ((v4l2_std_id)0x00200000)
#define V4L2_STD_SECAM_L ((v4l2_std_id)0x00400000)
#define V4L2_STD_SECAM_LC ((v4l2_std_id)0x00800000)

/* ATSC/HDTV */
#define V4L2_STD_ATSC_8_VSB ((v4l2_std_id)0x01000000)
#define V4L2_STD_ATSC_16_VSB ((v4l2_std_id)0x02000000)

/* Although std_id is 64 bits, there is an issue on PPC32 architecture that
   makes switch(__u64) to break. So, there's a hack on v4l2-common.c rounding
   this value to 32 bits.
   As, currently, the max value is for V4L2_STD_ATSC_16_VSB (30 bits wide),
   it should work fine. However, if needed to add more than two standards,
   v4l2-common.c should be fixed.
 */

/*
 * Some macros to merge video standards in order to make live easier for the
 * drivers and V4L2 applications
 */

/*
 * "Common" NTSC/M - It should be noticed that V4L2_STD_NTSC_443 is
 * Missing here.
 */
#define V4L2_STD_NTSC (V4L2_STD_NTSC_M | V4L2_STD_NTSC_M_JP | V4L2_STD_NTSC_M_KR)
/* Secam macros */
#define V4L2_STD_SECAM_DK (V4L2_STD_SECAM_D | V4L2_STD_SECAM_K | V4L2_STD_SECAM_K1)
/* All Secam Standards */
#define V4L2_STD_SECAM                                                                                                 \
    (V4L2_STD_SECAM_B | V4L2_STD_SECAM_G | V4L2_STD_SECAM_H | V4L2_STD_SECAM_DK | V4L2_STD_SECAM_L | V4L2_STD_SECAM_LC)
/* PAL macros */
#define V4L2_STD_PAL_BG (V4L2_STD_PAL_B | V4L2_STD_PAL_B1 | V4L2_STD_PAL_G)
#define V4L2_STD_PAL_DK (V4L2_STD_PAL_D | V4L2_STD_PAL_D1 | V4L2_STD_PAL_K)
/*
 * "Common" PAL - This macro is there to be compatible with the old
 * V4L1 concept of "PAL": /BGDKHI.
 * Several PAL standards are missing here: /M, /N and /Nc
 */
#define V4L2_STD_PAL (V4L2_STD_PAL_BG | V4L2_STD_PAL_DK | V4L2_STD_PAL_H | V4L2_STD_PAL_I)
/* Chroma "agnostic" standards */
#define V4L2_STD_B (V4L2_STD_PAL_B | V4L2_STD_PAL_B1 | V4L2_STD_SECAM_B)
#define V4L2_STD_G (V4L2_STD_PAL_G | V4L2_STD_SECAM_G)
#define V4L2_STD_H (V4L2_STD_PAL_H | V4L2_STD_SECAM_H)
#define V4L2_STD_L (V4L2_STD_SECAM_L | V4L2_STD_SECAM_LC)
#define V4L2_STD_GH (V4L2_STD_G | V4L2_STD_H)
#define V4L2_STD_DK (V4L2_STD_PAL_DK | V4L2_STD_SECAM_DK)
#define V4L2_STD_BG (V4L2_STD_B | V4L2_STD_G)
#define V4L2_STD_MN (V4L2_STD_PAL_M | V4L2_STD_PAL_N | V4L2_STD_PAL_Nc | V4L2_STD_NTSC)

/* Standards where MTS/BTSC stereo could be found */
#define V4L2_STD_MTS (V4L2_STD_NTSC_M | V4L2_STD_PAL_M | V4L2_STD_PAL_N | V4L2_STD_PAL_Nc)

/* Standards for Countries with 60Hz Line frequency */
#define V4L2_STD_525_60 (V4L2_STD_PAL_M | V4L2_STD_PAL_60 | V4L2_STD_NTSC | V4L2_STD_NTSC_443)
/* Standards for Countries with 50Hz Line frequency */
#define V4L2_STD_625_50 (V4L2_STD_PAL | V4L2_STD_PAL_N | V4L2_STD_PAL_Nc | V4L2_STD_SECAM)

#define V4L2_STD_ATSC (V4L2_STD_ATSC_8_VSB | V4L2_STD_ATSC_16_VSB)
/* Macros with none and all analog standards */
#define V4L2_STD_UNKNOWN 0
#define V4L2_STD_ALL (V4L2_STD_525_60 | V4L2_STD_625_50)

struct v4l2_standard {
    __u32 index;
    v4l2_std_id id;
    __u8 name[24];
    struct v4l2_fract frameperiod; /* Frames, not fields */
    __u32 framelines;
    __u32 reserved[4];
};

/*
 *    D V    B T    T I M I N G S
 */

/** struct v4l2_bt_timings - BT.656/BT.1120 timing data
 * @width:    total width of the active video in pixels
 * @height:    total height of the active video in lines
 * @interlaced:    Interlaced or progressive
 * @polarities:    Positive or negative polarities
 * @pixelclock:    Pixel clock in HZ. Ex. 74.25MHz->74250000
 * @hfrontporch:Horizontal front porch in pixels
 * @hsync:    Horizontal Sync length in pixels
 * @hbackporch:    Horizontal back porch in pixels
 * @vfrontporch:Vertical front porch in lines
 * @vsync:    Vertical Sync length in lines
 * @vbackporch:    Vertical back porch in lines
 * @il_vfrontporch:Vertical front porch for the even field
 *        (aka field 2) of interlaced field formats
 * @il_vsync:    Vertical Sync length for the even field
 *        (aka field 2) of interlaced field formats
 * @il_vbackporch:Vertical back porch for the even field
 *        (aka field 2) of interlaced field formats
 * @standards:    Standards the timing belongs to
 * @flags:    Flags
 * @picture_aspect: The picture aspect ratio (hor/vert).
 * @cea861_vic:    VIC code as per the CEA-861 standard.
 * @hdmi_vic:    VIC code as per the HDMI standard.
 * @reserved:    Reserved fields, must be zeroed.
 *
 * A note regarding vertical interlaced timings: height refers to the total
 * height of the active video frame (= two fields). The blanking timings refer
 * to the blanking of each field. So the height of the total frame is
 * calculated as follows:
 *
 * tot_height = height + vfrontporch + vsync + vbackporch +
 *                       il_vfrontporch + il_vsync + il_vbackporch
 *
 * The active height of each field is height / 2.
 */
struct v4l2_bt_timings {
    __u32 width;
    __u32 height;
    __u32 interlaced;
    __u32 polarities;
    __u64 pixelclock;
    __u32 hfrontporch;
    __u32 hsync;
    __u32 hbackporch;
    __u32 vfrontporch;
    __u32 vsync;
    __u32 vbackporch;
    __u32 il_vfrontporch;
    __u32 il_vsync;
    __u32 il_vbackporch;
    __u32 standards;
    __u32 flags;
    struct v4l2_fract picture_aspect;
    __u8 cea861_vic;
    __u8 hdmi_vic;
    __u8 reserved[46];
} __attribute__((packed));

/* Interlaced or progressive format */
#define V4L2_DV_PROGRESSIVE 0
#define V4L2_DV_INTERLACED 1

/* Polarities. If bit is not set, it is assumed to be negative polarity */
#define V4L2_DV_VSYNC_POS_POL 0x00000001
#define V4L2_DV_HSYNC_POS_POL 0x00000002

/* Timings standards */
#define V4L2_DV_BT_STD_CEA861 (1 << 0) /* CEA-861 Digital TV Profile */
#define V4L2_DV_BT_STD_DMT (1 << 1)    /* VESA Discrete Monitor Timings */
#define V4L2_DV_BT_STD_CVT (1 << 2)    /* VESA Coordinated Video Timings */
#define V4L2_DV_BT_STD_GTF (1 << 3)    /* VESA Generalized Timings Formula */
#define V4L2_DV_BT_STD_SDI (1 << 4)    /* SDI Timings */

/* Flags */

/*
 * CVT/GTF specific: timing uses reduced blanking (CVT) or the 'Secondary
 * GTF' curve (GTF). In both cases the horizontal and/or vertical blanking
 * intervals are reduced, allowing a higher resolution over the same
 * bandwidth. This is a read-only flag.
 */
#define V4L2_DV_FL_REDUCED_BLANKING (1 << 0)
/*
 * CEA-861 specific: set for CEA-861 formats with a framerate of a multiple
 * of six. These formats can be optionally played at 1 / 1.001 speed.
 * This is a read-only flag.
 */
#define V4L2_DV_FL_CAN_REDUCE_FPS (1 << 1)
/*
 * CEA-861 specific: only valid for video transmitters, the flag is cleared
 * by receivers.
 * If the framerate of the format is a multiple of six, then the pixelclock
 * used to set up the transmitter is divided by 1.001 to make it compatible
 * with 60 Hz based standards such as NTSC and PAL-M that use a framerate of
 * 29.97 Hz. Otherwise this flag is cleared. If the transmitter can't generate
 * such frequencies, then the flag will also be cleared.
 */
#define V4L2_DV_FL_REDUCED_FPS (1 << 2)
/*
 * Specific to interlaced formats: if set, then field 1 is really one half-line
 * longer and field 2 is really one half-line shorter, so each field has
 * exactly the same number of half-lines. Whether half-lines can be detected
 * or used depends on the hardware.
 */
#define V4L2_DV_FL_HALF_LINE (1 << 3)
/*
 * If set, then this is a Consumer Electronics (CE) video format. Such formats
 * differ from other formats (commonly called IT formats) in that if RGB
 * encoding is used then by default the RGB values use limited range (i.e.
 * use the range 16-235) as opposed to 0-255. All formats defined in CEA-861
 * except for the 640x480 format are CE formats.
 */
#define V4L2_DV_FL_IS_CE_VIDEO (1 << 4)
/* Some formats like SMPTE-125M have an interlaced signal with a odd
 * total height. For these formats, if this flag is set, the first
 * field has the extra line. If not, it is the second field.
 */
#define V4L2_DV_FL_FIRST_FIELD_EXTRA_LINE (1 << 5)
/*
 * If set, then the picture_aspect field is valid. Otherwise assume that the
 * pixels are square, so the picture aspect ratio is the same as the width to
 * height ratio.
 */
#define V4L2_DV_FL_HAS_PICTURE_ASPECT (1 << 6)
/*
 * If set, then the cea861_vic field is valid and contains the Video
 * Identification Code as per the CEA-861 standard.
 */
#define V4L2_DV_FL_HAS_CEA861_VIC (1 << 7)
/*
 * If set, then the hdmi_vic field is valid and contains the Video
 * Identification Code as per the HDMI standard (HDMI Vendor Specific
 * InfoFrame).
 */
#define V4L2_DV_FL_HAS_HDMI_VIC (1 << 8)
/*
 * CEA-861 specific: only valid for video receivers.
 * If set, then HW can detect the difference between regular FPS and
 * 1000/1001 FPS. Note: This flag is only valid for HDMI VIC codes with
 * the V4L2_DV_FL_CAN_REDUCE_FPS flag set.
 */
#define V4L2_DV_FL_CAN_DETECT_REDUCED_FPS (1 << 9)

/* A few useful defines to calculate the total blanking and frame sizes */
#define V4L2_DV_BT_BLANKING_WIDTH(bt) ((bt)->hfrontporch + (bt)->hsync + (bt)->hbackporch)
#define V4L2_DV_BT_FRAME_WIDTH(bt) ((bt)->width + V4L2_DV_BT_BLANKING_WIDTH(bt))
#define V4L2_DV_BT_BLANKING_HEIGHT(bt)                                                                                 \
    ((bt)->vfrontporch + (bt)->vsync + (bt)->vbackporch + (bt)->il_vfrontporch + (bt)->il_vsync + (bt)->il_vbackporch)
#define V4L2_DV_BT_FRAME_HEIGHT(bt) ((bt)->height + V4L2_DV_BT_BLANKING_HEIGHT(bt))

/** struct v4l2_dv_timings - DV timings
 * @type:    the type of the timings
 * @bt:    BT656/1120 timings
 */
struct v4l2_dv_timings {
    __u32 type;
    union {
        struct v4l2_bt_timings bt;
        __u32 reserved[32];
    };
} __attribute__((packed));

/* Values for the type field */
#define V4L2_DV_BT_656_1120 0 /* BT.656/1120 timing type */

/** struct v4l2_enum_dv_timings - DV timings enumeration
 * @index:    enumeration index
 * @pad:    the pad number for which to enumerate timings (used with
 *        v4l-subdev nodes only)
 * @reserved:    must be zeroed
 * @timings:    the timings for the given index
 */
struct v4l2_enum_dv_timings {
    __u32 index;
    __u32 pad;
    __u32 reserved[2];
    struct v4l2_dv_timings timings;
};

/** struct v4l2_bt_timings_cap - BT.656/BT.1120 timing capabilities
 * @min_width:        width in pixels
 * @max_width:        width in pixels
 * @min_height:        height in lines
 * @max_height:        height in lines
 * @min_pixelclock:    Pixel clock in HZ. Ex. 74.25MHz->74250000
 * @max_pixelclock:    Pixel clock in HZ. Ex. 74.25MHz->74250000
 * @standards:        Supported standards
 * @capabilities:    Supported capabilities
 * @reserved:        Must be zeroed
 */
struct v4l2_bt_timings_cap {
    __u32 min_width;
    __u32 max_width;
    __u32 min_height;
    __u32 max_height;
    __u64 min_pixelclock;
    __u64 max_pixelclock;
    __u32 standards;
    __u32 capabilities;
    __u32 reserved[16];
} __attribute__((packed));

/* Supports interlaced formats */
#define V4L2_DV_BT_CAP_INTERLACED (1 << 0)
/* Supports progressive formats */
#define V4L2_DV_BT_CAP_PROGRESSIVE (1 << 1)
/* Supports CVT/GTF reduced blanking */
#define V4L2_DV_BT_CAP_REDUCED_BLANKING (1 << 2)
/* Supports custom formats */
#define V4L2_DV_BT_CAP_CUSTOM (1 << 3)

/** struct v4l2_dv_timings_cap - DV timings capabilities
 * @type:    the type of the timings (same as in struct v4l2_dv_timings)
 * @pad:    the pad number for which to query capabilities (used with
 *        v4l-subdev nodes only)
 * @bt:        the BT656/1120 timings capabilities
 */
struct v4l2_dv_timings_cap {
    __u32 type;
    __u32 pad;
    __u32 reserved[2];
    union {
        struct v4l2_bt_timings_cap bt;
        __u32 raw_data[32];
    };
};

/*
 *    V I D E O   I N P U T S
 */
struct v4l2_input {
    __u32 index;    /*  Which input */
    __u8 name[32];  /*  Label */
    __u32 type;     /*  Type of input */
    __u32 audioset; /*  Associated audios (bitfield) */
    __u32 tuner;    /*  enum v4l2_tuner_type */
    v4l2_std_id std;
    __u32 status;
    __u32 capabilities;
    __u32 reserved[3];
};

/*  Values for the 'type' field */
#define V4L2_INPUT_TYPE_TUNER 1
#define V4L2_INPUT_TYPE_CAMERA 2
#define V4L2_INPUT_TYPE_TOUCH 3

/* field 'status' - general */
#define V4L2_IN_ST_NO_POWER 0x00000001 /* Attached device is off */
#define V4L2_IN_ST_NO_SIGNAL 0x00000002
#define V4L2_IN_ST_NO_COLOR 0x00000004

/* field 'status' - sensor orientation */
/* If sensor is mounted upside down set both bits */
#define V4L2_IN_ST_HFLIP 0x00000010 /* Frames are flipped horizontally */
#define V4L2_IN_ST_VFLIP 0x00000020 /* Frames are flipped vertically */

/* field 'status' - analog */
#define V4L2_IN_ST_NO_H_LOCK 0x00000100   /* No horizontal sync lock */
#define V4L2_IN_ST_COLOR_KILL 0x00000200  /* Color killer is active */
#define V4L2_IN_ST_NO_V_LOCK 0x00000400   /* No vertical sync lock */
#define V4L2_IN_ST_NO_STD_LOCK 0x00000800 /* No standard format lock */

/* field 'status' - digital */
#define V4L2_IN_ST_NO_SYNC 0x00010000    /* No synchronization lock */
#define V4L2_IN_ST_NO_EQU 0x00020000     /* No equalizer lock */
#define V4L2_IN_ST_NO_CARRIER 0x00040000 /* Carrier recovery failed */

/* field 'status' - VCR and set-top box */
#define V4L2_IN_ST_MACROVISION 0x01000000 /* Macrovision detected */
#define V4L2_IN_ST_NO_ACCESS 0x02000000   /* Conditional access denied */
#define V4L2_IN_ST_VTR 0x04000000         /* VTR time constant */

/* capabilities flags */
#define V4L2_IN_CAP_DV_TIMINGS 0x00000002                 /* Supports S_DV_TIMINGS */
#define V4L2_IN_CAP_CUSTOM_TIMINGS V4L2_IN_CAP_DV_TIMINGS /* For compatibility */
#define V4L2_IN_CAP_STD 0x00000004                        /* Supports S_STD */
#define V4L2_IN_CAP_NATIVE_SIZE 0x00000008                /* Supports setting native size */

/*
 *    V I D E O   O U T P U T S
 */
struct v4l2_output {
    __u32 index;     /*  Which output */
    __u8 name[32];   /*  Label */
    __u32 type;      /*  Type of output */
    __u32 audioset;  /*  Associated audios (bitfield) */
    __u32 modulator; /*  Associated modulator */
    v4l2_std_id std;
    __u32 capabilities;
    __u32 reserved[3];
};
/*  Values for the 'type' field */
#define V4L2_OUTPUT_TYPE_MODULATOR 1
#define V4L2_OUTPUT_TYPE_ANALOG 2
#define V4L2_OUTPUT_TYPE_ANALOGVGAOVERLAY 3

/* capabilities flags */
#define V4L2_OUT_CAP_DV_TIMINGS 0x00000002                  /* Supports S_DV_TIMINGS */
#define V4L2_OUT_CAP_CUSTOM_TIMINGS V4L2_OUT_CAP_DV_TIMINGS /* For compatibility */
#define V4L2_OUT_CAP_STD 0x00000004                         /* Supports S_STD */
#define V4L2_OUT_CAP_NATIVE_SIZE 0x00000008                 /* Supports setting native size */

/*
 *    C O N T R O L S
 */
struct v4l2_control {
    __u32 id;
    __s32 value;
};

struct v4l2_ext_control {
    __u32 id;
    __u32 size;
    __u32 reserved2[1];
    union {
        __s32 value;
        __s64 value64;
        char __user *string;
        __u8 __user *p_u8;
        __u16 __user *p_u16;
        __u32 __user *p_u32;
        struct v4l2_area __user *p_area;
        void __user *ptr;
    };
} __attribute__((packed));

struct v4l2_ext_controls {
    union {
#ifndef __KERNEL__
        __u32 ctrl_class;
#endif
        __u32 which;
    };
    __u32 count;
    __u32 error_idx;
    __s32 request_fd;
    __u32 reserved[1];
    struct v4l2_ext_control *controls;
};

#define V4L2_CTRL_ID_MASK (0x0fffffff)
#ifndef __KERNEL__
#define V4L2_CTRL_ID2CLASS(id) ((id)&0x0fff0000UL)
#endif
#define V4L2_CTRL_ID2WHICH(id) ((id)&0x0fff0000UL)
#define V4L2_CTRL_DRIVER_PRIV(id) (((id)&0xffff) >= 0x1000)
#define V4L2_CTRL_MAX_DIMS (4)
#define V4L2_CTRL_WHICH_CUR_VAL 0
#define V4L2_CTRL_WHICH_DEF_VAL 0x0f000000
#define V4L2_CTRL_WHICH_REQUEST_VAL 0x0f010000

enum v4l2_ctrl_type {
    V4L2_CTRL_TYPE_INTEGER = 1,
    V4L2_CTRL_TYPE_BOOLEAN = 2,
    V4L2_CTRL_TYPE_MENU = 3,
    V4L2_CTRL_TYPE_BUTTON = 4,
    V4L2_CTRL_TYPE_INTEGER64 = 5,
    V4L2_CTRL_TYPE_CTRL_CLASS = 6,
    V4L2_CTRL_TYPE_STRING = 7,
    V4L2_CTRL_TYPE_BITMASK = 8,
    V4L2_CTRL_TYPE_INTEGER_MENU = 9,

    /* Compound types are >= 0x0100 */
    V4L2_CTRL_COMPOUND_TYPES = 0x0100,
    V4L2_CTRL_TYPE_U8 = 0x0100,
    V4L2_CTRL_TYPE_U16 = 0x0101,
    V4L2_CTRL_TYPE_U32 = 0x0102,
    V4L2_CTRL_TYPE_AREA = 0x0106,
};

/*  Used in the VIDIOC_QUERYCTRL ioctl for querying controls */
struct v4l2_queryctrl {
    __u32 id;
    __u32 type;    /* enum v4l2_ctrl_type */
    __u8 name[32]; /* Whatever */
    __s32 minimum; /* Note signedness */
    __s32 maximum;
    __s32 step;
    __s32 default_value;
    __u32 flags;
    __u32 reserved[2];
};

/*  Used in the VIDIOC_QUERY_EXT_CTRL ioctl for querying extended controls */
struct v4l2_query_ext_ctrl {
    __u32 id;
    __u32 type;
    char name[32];
    __s64 minimum;
    __s64 maximum;
    __u64 step;
    __s64 default_value;
    __u32 flags;
    __u32 elem_size;
    __u32 elems;
    __u32 nr_of_dims;
    __u32 dims[V4L2_CTRL_MAX_DIMS];
    __u32 reserved[32];
};

/*  Used in the VIDIOC_QUERYMENU ioctl for querying menu items */
struct v4l2_querymenu {
    __u32 id;
    __u32 index;
    union {
        __u8 name[32]; /* Whatever */
        __s64 value;
    };
    __u32 reserved;
} __attribute__((packed));

/*  Control flags  */
#define V4L2_CTRL_FLAG_DISABLED 0x0001
#define V4L2_CTRL_FLAG_GRABBED 0x0002
#define V4L2_CTRL_FLAG_READ_ONLY 0x0004
#define V4L2_CTRL_FLAG_UPDATE 0x0008
#define V4L2_CTRL_FLAG_INACTIVE 0x0010
#define V4L2_CTRL_FLAG_SLIDER 0x0020
#define V4L2_CTRL_FLAG_WRITE_ONLY 0x0040
#define V4L2_CTRL_FLAG_VOLATILE 0x0080
#define V4L2_CTRL_FLAG_HAS_PAYLOAD 0x0100
#define V4L2_CTRL_FLAG_EXECUTE_ON_WRITE 0x0200
#define V4L2_CTRL_FLAG_MODIFY_LAYOUT 0x0400

/*  Query flags, to be ORed with the control ID */
#define V4L2_CTRL_FLAG_NEXT_CTRL 0x80000000
#define V4L2_CTRL_FLAG_NEXT_COMPOUND 0x40000000

/*  User-class control IDs defined by V4L2 */
#define V4L2_CID_MAX_CTRLS 1024
/*  IDs reserved for driver specific controls */
#define V4L2_CID_PRIVATE_BASE 0x08000000

/*
 *    T U N I N G
 */
struct v4l2_tuner {
    __u32 index;
    __u8 name[32];
    __u32 type; /* enum v4l2_tuner_type */
    __u32 capability;
    __u32 rangelow;
    __u32 rangehigh;
    __u32 rxsubchans;
    __u32 audmode;
    __s32 signal;
    __s32 afc;
    __u32 reserved[4];
};

struct v4l2_modulator {
    __u32 index;
    __u8 name[32];
    __u32 capability;
    __u32 rangelow;
    __u32 rangehigh;
    __u32 txsubchans;
    __u32 type; /* enum v4l2_tuner_type */
    __u32 reserved[3];
};

/*  Flags for the 'capability' field */
#define V4L2_TUNER_CAP_LOW 0x0001
#define V4L2_TUNER_CAP_NORM 0x0002
#define V4L2_TUNER_CAP_HWSEEK_BOUNDED 0x0004
#define V4L2_TUNER_CAP_HWSEEK_WRAP 0x0008
#define V4L2_TUNER_CAP_STEREO 0x0010
#define V4L2_TUNER_CAP_LANG2 0x0020
#define V4L2_TUNER_CAP_SAP 0x0020
#define V4L2_TUNER_CAP_LANG1 0x0040
#define V4L2_TUNER_CAP_RDS 0x0080
#define V4L2_TUNER_CAP_RDS_BLOCK_IO 0x0100
#define V4L2_TUNER_CAP_RDS_CONTROLS 0x0200
#define V4L2_TUNER_CAP_FREQ_BANDS 0x0400
#define V4L2_TUNER_CAP_HWSEEK_PROG_LIM 0x0800
#define V4L2_TUNER_CAP_1HZ 0x1000

/*  Flags for the 'rxsubchans' field */
#define V4L2_TUNER_SUB_MONO 0x0001
#define V4L2_TUNER_SUB_STEREO 0x0002
#define V4L2_TUNER_SUB_LANG2 0x0004
#define V4L2_TUNER_SUB_SAP 0x0004
#define V4L2_TUNER_SUB_LANG1 0x0008
#define V4L2_TUNER_SUB_RDS 0x0010

/*  Values for the 'audmode' field */
#define V4L2_TUNER_MODE_MONO 0x0000
#define V4L2_TUNER_MODE_STEREO 0x0001
#define V4L2_TUNER_MODE_LANG2 0x0002
#define V4L2_TUNER_MODE_SAP 0x0002
#define V4L2_TUNER_MODE_LANG1 0x0003
#define V4L2_TUNER_MODE_LANG1_LANG2 0x0004

struct v4l2_frequency {
    __u32 tuner;
    __u32 type; /* enum v4l2_tuner_type */
    __u32 frequency;
    __u32 reserved[8];
};

#define V4L2_BAND_MODULATION_VSB (1 << 1)
#define V4L2_BAND_MODULATION_FM (1 << 2)
#define V4L2_BAND_MODULATION_AM (1 << 3)

struct v4l2_frequency_band {
    __u32 tuner;
    __u32 type; /* enum v4l2_tuner_type */
    __u32 index;
    __u32 capability;
    __u32 rangelow;
    __u32 rangehigh;
    __u32 modulation;
    __u32 reserved[9];
};

struct v4l2_hw_freq_seek {
    __u32 tuner;
    __u32 type; /* enum v4l2_tuner_type */
    __u32 seek_upward;
    __u32 wrap_around;
    __u32 spacing;
    __u32 rangelow;
    __u32 rangehigh;
    __u32 reserved[5];
};

/*
 *    R D S
 */

struct v4l2_rds_data {
    __u8 lsb;
    __u8 msb;
    __u8 block;
} __attribute__((packed));

#define V4L2_RDS_BLOCK_MSK 0x7
#define V4L2_RDS_BLOCK_A 0
#define V4L2_RDS_BLOCK_B 1
#define V4L2_RDS_BLOCK_C 2
#define V4L2_RDS_BLOCK_D 3
#define V4L2_RDS_BLOCK_C_ALT 4
#define V4L2_RDS_BLOCK_INVALID 7

#define V4L2_RDS_BLOCK_CORRECTED 0x40
#define V4L2_RDS_BLOCK_ERROR 0x80

/*
 *    A U D I O
 */
struct v4l2_audio {
    __u32 index;
    __u8 name[32];
    __u32 capability;
    __u32 mode;
    __u32 reserved[2];
};

/*  Flags for the 'capability' field */
#define V4L2_AUDCAP_STEREO 0x00001
#define V4L2_AUDCAP_AVL 0x00002

/*  Flags for the 'mode' field */
#define V4L2_AUDMODE_AVL 0x00001

struct v4l2_audioout {
    __u32 index;
    __u8 name[32];
    __u32 capability;
    __u32 mode;
    __u32 reserved[2];
};

/*
 *    M P E G   S E R V I C E S
 */
#if 1
#define V4L2_ENC_IDX_FRAME_I (0)
#define V4L2_ENC_IDX_FRAME_P (1)
#define V4L2_ENC_IDX_FRAME_B (2)
#define V4L2_ENC_IDX_FRAME_MASK (0xf)

struct v4l2_enc_idx_entry {
    __u64 offset;
    __u64 pts;
    __u32 length;
    __u32 flags;
    __u32 reserved[2];
};

#define V4L2_ENC_IDX_ENTRIES (64)
struct v4l2_enc_idx {
    __u32 entries;
    __u32 entries_cap;
    __u32 reserved[4];
    struct v4l2_enc_idx_entry entry[V4L2_ENC_IDX_ENTRIES];
};

#define V4L2_ENC_CMD_START (0)
#define V4L2_ENC_CMD_STOP (1)
#define V4L2_ENC_CMD_PAUSE (2)
#define V4L2_ENC_CMD_RESUME (3)

/* Flags for V4L2_ENC_CMD_STOP */
#define V4L2_ENC_CMD_STOP_AT_GOP_END (1 << 0)

struct v4l2_encoder_cmd {
    __u32 cmd;
    __u32 flags;
    union {
        struct {
            __u32 data[8];
        } raw;
    };
};

/* Decoder commands */
#define V4L2_DEC_CMD_START (0)
#define V4L2_DEC_CMD_STOP (1)
#define V4L2_DEC_CMD_PAUSE (2)
#define V4L2_DEC_CMD_RESUME (3)
#define V4L2_DEC_CMD_FLUSH (4)

/* Flags for V4L2_DEC_CMD_START */
#define V4L2_DEC_CMD_START_MUTE_AUDIO (1 << 0)

/* Flags for V4L2_DEC_CMD_PAUSE */
#define V4L2_DEC_CMD_PAUSE_TO_BLACK (1 << 0)

/* Flags for V4L2_DEC_CMD_STOP */
#define V4L2_DEC_CMD_STOP_TO_BLACK (1 << 0)
#define V4L2_DEC_CMD_STOP_IMMEDIATELY (1 << 1)

/* Play format requirements (returned by the driver): */

/* The decoder has no special format requirements */
#define V4L2_DEC_START_FMT_NONE (0)
/* The decoder requires full GOPs */
#define V4L2_DEC_START_FMT_GOP (1)

/* The structure must be zeroed before use by the application
   This ensures it can be extended safely in the future. */
struct v4l2_decoder_cmd {
    __u32 cmd;
    __u32 flags;
    union {
        struct {
            __u64 pts;
        } stop;

        struct {
            /* 0 or 1000 specifies normal speed,
               1 specifies forward single stepping,
               -1 specifies backward single stepping,
               >1: playback at speed/1000 of the normal speed,
               <-1: reverse playback at (-speed/1000) of the normal speed. */
            __s32 speed;
            __u32 format;
        } start;

        struct {
            __u32 data[16];
        } raw;
    };
};
#endif

/*
 *    D A T A   S E R V I C E S   ( V B I )
 *
 *    Data services API by Michael Schimek
 */

/* Raw VBI */
struct v4l2_vbi_format {
    __u32 sampling_rate; /* in 1 Hz */
    __u32 offset;
    __u32 samples_per_line;
    __u32 sample_format; /* V4L2_PIX_FMT_* */
    __s32 start[2];
    __u32 count[2];
    __u32 flags;       /* V4L2_VBI_* */
    __u32 reserved[2]; /* must be zero */
};

/*  VBI flags  */
#define V4L2_VBI_UNSYNC (1 << 0)
#define V4L2_VBI_INTERLACED (1 << 1)

/* ITU-R start lines for each field */
#define V4L2_VBI_ITU_525_F1_START (1)
#define V4L2_VBI_ITU_525_F2_START (264)
#define V4L2_VBI_ITU_625_F1_START (1)
#define V4L2_VBI_ITU_625_F2_START (314)

/* Sliced VBI
 *
 *    This implements is a proposal V4L2 API to allow SLICED VBI
 * required for some hardware encoders. It should change without
 * notice in the definitive implementation.
 */

struct v4l2_sliced_vbi_format {
    __u16 service_set;
    /* service_lines[0][...] specifies lines 0-23 (1-23 used) of the first field
       service_lines[1][...] specifies lines 0-23 (1-23 used) of the second field
                 (equals frame lines 313-336 for 625 line video
                  standards, 263-286 for 525 line standards) */
    __u16 service_lines[2][24];
    __u32 io_size;
    __u32 reserved[2]; /* must be zero */
};

/* Teletext World System Teletext
   (WST), defined on ITU-R BT.653-2 */
#define V4L2_SLICED_TELETEXT_B (0x0001)
/* Video Program System, defined on ETS 300 231 */
#define V4L2_SLICED_VPS (0x0400)
/* Closed Caption, defined on EIA-608 */
#define V4L2_SLICED_CAPTION_525 (0x1000)
/* Wide Screen System, defined on ITU-R BT1119.1 */
#define V4L2_SLICED_WSS_625 (0x4000)

#define V4L2_SLICED_VBI_525 (V4L2_SLICED_CAPTION_525)
#define V4L2_SLICED_VBI_625 (V4L2_SLICED_TELETEXT_B | V4L2_SLICED_VPS | V4L2_SLICED_WSS_625)

struct v4l2_sliced_vbi_cap {
    __u16 service_set;
    /* service_lines[0][...] specifies lines 0-23 (1-23 used) of the first field
       service_lines[1][...] specifies lines 0-23 (1-23 used) of the second field
                 (equals frame lines 313-336 for 625 line video
                  standards, 263-286 for 525 line standards) */
    __u16 service_lines[2][24];
    __u32 type;        /* enum v4l2_buf_type */
    __u32 reserved[3]; /* must be 0 */
};

struct v4l2_sliced_vbi_data {
    __u32 id;
    __u32 field;    /* 0: first field, 1: second field */
    __u32 line;     /* 1-23 */
    __u32 reserved; /* must be 0 */
    __u8 data[48];
};

/*
 * Sliced VBI data inserted into MPEG Streams
 */

/*
 * V4L2_MPEG_STREAM_VBI_FMT_IVTV:
 *
 * Structure of payload contained in an MPEG 2 Private Stream 1 PES Packet in an
 * MPEG-2 Program Pack that contains V4L2_MPEG_STREAM_VBI_FMT_IVTV Sliced VBI
 * data
 *
 * Note, the MPEG-2 Program Pack and Private Stream 1 PES packet header
 * definitions are not included here.  See the MPEG-2 specifications for details
 * on these headers.
 */

/* Line type IDs */
#define V4L2_MPEG_VBI_IVTV_TELETEXT_B (1)
#define V4L2_MPEG_VBI_IVTV_CAPTION_525 (4)
#define V4L2_MPEG_VBI_IVTV_WSS_625 (5)
#define V4L2_MPEG_VBI_IVTV_VPS (7)

struct v4l2_mpeg_vbi_itv0_line {
    __u8 id;       /* One of V4L2_MPEG_VBI_IVTV_* above */
    __u8 data[42]; /* Sliced VBI data for the line */
} __attribute__((packed));

struct v4l2_mpeg_vbi_itv0 {
    __le32 linemask[2]; /* Bitmasks of VBI service lines present */
    struct v4l2_mpeg_vbi_itv0_line line[35];
} __attribute__((packed));

struct v4l2_mpeg_vbi_ITV0 {
    struct v4l2_mpeg_vbi_itv0_line line[36];
} __attribute__((packed));

#define V4L2_MPEG_VBI_IVTV_MAGIC0 "itv0"
#define V4L2_MPEG_VBI_IVTV_MAGIC1 "ITV0"

struct v4l2_mpeg_vbi_fmt_ivtv {
    __u8 magic[4];
    union {
        struct v4l2_mpeg_vbi_itv0 itv0;
        struct v4l2_mpeg_vbi_ITV0 ITV0;
    };
} __attribute__((packed));

/*
 *    A G G R E G A T E   S T R U C T U R E S
 */

/**
 * struct v4l2_plane_pix_format - additional, per-plane format definition
 * @sizeimage:        maximum size in bytes required for data, for which
 *            this plane will be used
 * @bytesperline:    distance in bytes between the leftmost pixels in two
 *            adjacent lines
 */
struct v4l2_plane_pix_format {
    __u32 sizeimage;
    __u32 bytesperline;
    __u16 reserved[6];
} __attribute__((packed));

/**
 * struct v4l2_pix_format_mplane - multiplanar format definition
 * @width:        image width in pixels
 * @height:        image height in pixels
 * @pixelformat:    little endian four character code (fourcc)
 * @field:        enum v4l2_field; field order (for interlaced video)
 * @colorspace:        enum v4l2_colorspace; supplemental to pixelformat
 * @plane_fmt:        per-plane information
 * @num_planes:        number of planes for this format
 * @flags:        format flags (V4L2_PIX_FMT_FLAG_*)
 * @ycbcr_enc:        enum v4l2_ycbcr_encoding, Y'CbCr encoding
 * @quantization:    enum v4l2_quantization, colorspace quantization
 * @xfer_func:        enum v4l2_xfer_func, colorspace transfer function
 */
struct v4l2_pix_format_mplane {
    __u32 width;
    __u32 height;
    __u32 pixelformat;
    __u32 field;
    __u32 colorspace;

    struct v4l2_plane_pix_format plane_fmt[VIDEO_MAX_PLANES];
    __u8 num_planes;
    __u8 flags;
    union {
        __u8 ycbcr_enc;
        __u8 hsv_enc;
    };
    __u8 quantization;
    __u8 xfer_func;
    __u8 reserved[7];
} __attribute__((packed));

/**
 * struct v4l2_sdr_format - SDR format definition
 * @pixelformat:    little endian four character code (fourcc)
 * @buffersize:        maximum size in bytes required for data
 */
struct v4l2_sdr_format {
    __u32 pixelformat;
    __u32 buffersize;
    __u8 reserved[24];
} __attribute__((packed));

/**
 * struct v4l2_meta_format - metadata format definition
 * @dataformat:        little endian four character code (fourcc)
 * @buffersize:        maximum size in bytes required for data
 */
struct v4l2_meta_format {
    __u32 dataformat;
    __u32 buffersize;
} __attribute__((packed));

/**
 * struct v4l2_format - stream data format
 * @type:    enum v4l2_buf_type; type of the data stream
 * @pix:    definition of an image format
 * @pix_mp:    definition of a multiplanar image format
 * @win:    definition of an overlaid image
 * @vbi:    raw VBI capture or output parameters
 * @sliced:    sliced VBI capture or output parameters
 * @raw_data:    placeholder for future extensions and custom formats
 */
struct v4l2_format {
    __u32 type;
    union {
        struct v4l2_pix_format pix;           /* V4L2_BUF_TYPE_VIDEO_CAPTURE */
        struct v4l2_pix_format_mplane pix_mp; /* V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE */
        struct v4l2_window win;               /* V4L2_BUF_TYPE_VIDEO_OVERLAY */
        struct v4l2_vbi_format vbi;           /* V4L2_BUF_TYPE_VBI_CAPTURE */
        struct v4l2_sliced_vbi_format sliced; /* V4L2_BUF_TYPE_SLICED_VBI_CAPTURE */
        struct v4l2_sdr_format sdr;           /* V4L2_BUF_TYPE_SDR_CAPTURE */
        struct v4l2_meta_format meta;         /* V4L2_BUF_TYPE_META_CAPTURE */
        __u8 raw_data[200];                   /* user-defined */
    } fmt;
};

/*    Stream type-dependent parameters
 */
struct v4l2_streamparm {
    __u32 type; /* enum v4l2_buf_type */
    union {
        struct v4l2_captureparm capture;
        struct v4l2_outputparm output;
        __u8 raw_data[200]; /* user-defined */
    } parm;
};

/*
 *    E V E N T S
 */

#define V4L2_EVENT_ALL 0
#define V4L2_EVENT_VSYNC 1
#define V4L2_EVENT_EOS 2
#define V4L2_EVENT_CTRL 3
#define V4L2_EVENT_FRAME_SYNC 4
#define V4L2_EVENT_SOURCE_CHANGE 5
#define V4L2_EVENT_MOTION_DET 6
#define V4L2_EVENT_PRIVATE_START 0x08000000

/* Payload for V4L2_EVENT_VSYNC */
struct v4l2_event_vsync {
    /* Can be V4L2_FIELD_ANY, _NONE, _TOP or _BOTTOM */
    __u8 field;
} __attribute__((packed));

/* Payload for V4L2_EVENT_CTRL */
#define V4L2_EVENT_CTRL_CH_VALUE (1 << 0)
#define V4L2_EVENT_CTRL_CH_FLAGS (1 << 1)
#define V4L2_EVENT_CTRL_CH_RANGE (1 << 2)

struct v4l2_event_ctrl {
    __u32 changes;
    __u32 type;
    union {
        __s32 value;
        __s64 value64;
    };
    __u32 flags;
    __s32 minimum;
    __s32 maximum;
    __s32 step;
    __s32 default_value;
};

struct v4l2_event_frame_sync {
    __u32 frame_sequence;
};

#define V4L2_EVENT_SRC_CH_RESOLUTION (1 << 0)

struct v4l2_event_src_change {
    __u32 changes;
};

#define V4L2_EVENT_MD_FL_HAVE_FRAME_SEQ (1 << 0)

/**
 * struct v4l2_event_motion_det - motion detection event
 * @flags:             if V4L2_EVENT_MD_FL_HAVE_FRAME_SEQ is set, then the
 *                     frame_sequence field is valid.
 * @frame_sequence:    the frame sequence number associated with this event.
 * @region_mask:       which regions detected motion.
 */
struct v4l2_event_motion_det {
    __u32 flags;
    __u32 frame_sequence;
    __u32 region_mask;
};

struct v4l2_event {
    __u32 type;
    union {
        struct v4l2_event_vsync vsync;
        struct v4l2_event_ctrl ctrl;
        struct v4l2_event_frame_sync frame_sync;
        struct v4l2_event_src_change src_change;
        struct v4l2_event_motion_det motion_det;
        __u8 data[64];
    } u;
    __u32 pending;
    __u32 sequence;
#ifdef __KERNEL__
    struct __kernel_timespec timestamp;
#else
    struct timespec timestamp;
#endif
    __u32 id;
    __u32 reserved[8];
};

#define V4L2_EVENT_SUB_FL_SEND_INITIAL (1 << 0)
#define V4L2_EVENT_SUB_FL_ALLOW_FEEDBACK (1 << 1)

struct v4l2_event_subscription {
    __u32 type;
    __u32 id;
    __u32 flags;
    __u32 reserved[5];
};

/*
 *    A D V A N C E D   D E B U G G I N G
 *
 *    NOTE: EXPERIMENTAL API, NEVER RELY ON THIS IN APPLICATIONS!
 *    FOR DEBUGGING, TESTING AND INTERNAL USE ONLY!
 */

/* VIDIOC_DBG_G_REGISTER and VIDIOC_DBG_S_REGISTER */

#define V4L2_CHIP_MATCH_BRIDGE 0 /* Match against chip ID on the bridge (0 for the bridge) */
#define V4L2_CHIP_MATCH_SUBDEV 4 /* Match against subdev index */

/* The following four defines are no longer in use */
#define V4L2_CHIP_MATCH_HOST V4L2_CHIP_MATCH_BRIDGE
#define V4L2_CHIP_MATCH_I2C_DRIVER 1 /* Match against I2C driver name */
#define V4L2_CHIP_MATCH_I2C_ADDR 2   /* Match against I2C 7-bit address */
#define V4L2_CHIP_MATCH_AC97 3       /* Match against ancillary AC97 chip */

struct v4l2_dbg_match {
    __u32 type; /* Match type */
    union {     /* Match this chip, meaning determined by type */
        __u32 addr;
        char name[32];
    };
} __attribute__((packed));

struct v4l2_dbg_register {
    struct v4l2_dbg_match match;
    __u32 size; /* register size in bytes */
    __u64 reg;
    __u64 val;
} __attribute__((packed));

#define V4L2_CHIP_FL_READABLE (1 << 0)
#define V4L2_CHIP_FL_WRITABLE (1 << 1)

/* VIDIOC_DBG_G_CHIP_INFO */
struct v4l2_dbg_chip_info {
    struct v4l2_dbg_match match;
    char name[32];
    __u32 flags;
    __u32 reserved[32];
} __attribute__((packed));

/**
 * struct v4l2_create_buffers - VIDIOC_CREATE_BUFS argument
 * @index:    on return, index of the first created buffer
 * @count:    entry: number of requested buffers,
 *        return: number of created buffers
 * @memory:    enum v4l2_memory; buffer memory type
 * @format:    frame format, for which buffers are requested
 * @capabilities: capabilities of this buffer type.
 * @reserved:    future extensions
 */
struct v4l2_create_buffers {
    __u32 index;
    __u32 count;
    __u32 memory;
    struct v4l2_format format;
    __u32 capabilities;
    __u32 reserved[7];
};

/*
 *    I O C T L   C O D E S   F O R   V I D E O   D E V I C E S
 *
 */
#define VIDIOC_QUERYCAP _IOR('V', 0, struct v4l2_capability)
#define VIDIOC_ENUM_FMT _IOWR('V', 2, struct v4l2_fmtdesc)
#define VIDIOC_G_FMT _IOWR('V', 4, struct v4l2_format)
#define VIDIOC_S_FMT _IOWR('V', 5, struct v4l2_format)
#define VIDIOC_REQBUFS _IOWR('V', 8, struct v4l2_requestbuffers)
#define VIDIOC_QUERYBUF _IOWR('V', 9, struct v4l2_buffer)
#define VIDIOC_G_FBUF _IOR('V', 10, struct v4l2_framebuffer)
#define VIDIOC_S_FBUF _IOW('V', 11, struct v4l2_framebuffer)
#define VIDIOC_OVERLAY _IOW('V', 14, int)
#define VIDIOC_QBUF _IOWR('V', 15, struct v4l2_buffer)
#define VIDIOC_EXPBUF _IOWR('V', 16, struct v4l2_exportbuffer)
#define VIDIOC_DQBUF _IOWR('V', 17, struct v4l2_buffer)
#define VIDIOC_STREAMON _IOW('V', 18, int)
#define VIDIOC_STREAMOFF _IOW('V', 19, int)
#define VIDIOC_G_PARM _IOWR('V', 21, struct v4l2_streamparm)
#define VIDIOC_S_PARM _IOWR('V', 22, struct v4l2_streamparm)
#define VIDIOC_G_STD _IOR('V', 23, v4l2_std_id)
#define VIDIOC_S_STD _IOW('V', 24, v4l2_std_id)
#define VIDIOC_ENUMSTD _IOWR('V', 25, struct v4l2_standard)
#define VIDIOC_ENUMINPUT _IOWR('V', 26, struct v4l2_input)
#define VIDIOC_G_CTRL _IOWR('V', 27, struct v4l2_control)
#define VIDIOC_S_CTRL _IOWR('V', 28, struct v4l2_control)
#define VIDIOC_G_TUNER _IOWR('V', 29, struct v4l2_tuner)
#define VIDIOC_S_TUNER _IOW('V', 30, struct v4l2_tuner)
#define VIDIOC_G_AUDIO _IOR('V', 33, struct v4l2_audio)
#define VIDIOC_S_AUDIO _IOW('V', 34, struct v4l2_audio)
#define VIDIOC_QUERYCTRL _IOWR('V', 36, struct v4l2_queryctrl)
#define VIDIOC_QUERYMENU _IOWR('V', 37, struct v4l2_querymenu)
#define VIDIOC_G_INPUT _IOR('V', 38, int)
#define VIDIOC_S_INPUT _IOWR('V', 39, int)
#define VIDIOC_G_EDID _IOWR('V', 40, struct v4l2_edid)
#define VIDIOC_S_EDID _IOWR('V', 41, struct v4l2_edid)
#define VIDIOC_G_OUTPUT _IOR('V', 46, int)
#define VIDIOC_S_OUTPUT _IOWR('V', 47, int)
#define VIDIOC_ENUMOUTPUT _IOWR('V', 48, struct v4l2_output)
#define VIDIOC_G_AUDOUT _IOR('V', 49, struct v4l2_audioout)
#define VIDIOC_S_AUDOUT _IOW('V', 50, struct v4l2_audioout)
#define VIDIOC_G_MODULATOR _IOWR('V', 54, struct v4l2_modulator)
#define VIDIOC_S_MODULATOR _IOW('V', 55, struct v4l2_modulator)
#define VIDIOC_G_FREQUENCY _IOWR('V', 56, struct v4l2_frequency)
#define VIDIOC_S_FREQUENCY _IOW('V', 57, struct v4l2_frequency)
#define VIDIOC_CROPCAP _IOWR('V', 58, struct v4l2_cropcap)
#define VIDIOC_G_CROP _IOWR('V', 59, struct v4l2_crop)
#define VIDIOC_S_CROP _IOW('V', 60, struct v4l2_crop)
#define VIDIOC_G_JPEGCOMP _IOR('V', 61, struct v4l2_jpegcompression)
#define VIDIOC_S_JPEGCOMP _IOW('V', 62, struct v4l2_jpegcompression)
#define VIDIOC_QUERYSTD _IOR('V', 63, v4l2_std_id)
#define VIDIOC_TRY_FMT _IOWR('V', 64, struct v4l2_format)
#define VIDIOC_ENUMAUDIO _IOWR('V', 65, struct v4l2_audio)
#define VIDIOC_ENUMAUDOUT _IOWR('V', 66, struct v4l2_audioout)
#define VIDIOC_G_PRIORITY _IOR('V', 67, __u32) /* enum v4l2_priority */
#define VIDIOC_S_PRIORITY _IOW('V', 68, __u32) /* enum v4l2_priority */
#define VIDIOC_G_SLICED_VBI_CAP _IOWR('V', 69, struct v4l2_sliced_vbi_cap)
#define VIDIOC_LOG_STATUS _IO('V', 70)
#define VIDIOC_G_EXT_CTRLS _IOWR('V', 71, struct v4l2_ext_controls)
#define VIDIOC_S_EXT_CTRLS _IOWR('V', 72, struct v4l2_ext_controls)
#define VIDIOC_TRY_EXT_CTRLS _IOWR('V', 73, struct v4l2_ext_controls)
#define VIDIOC_ENUM_FRAMESIZES _IOWR('V', 74, struct v4l2_frmsizeenum)
#define VIDIOC_ENUM_FRAMEINTERVALS _IOWR('V', 75, struct v4l2_frmivalenum)
#define VIDIOC_G_ENC_INDEX _IOR('V', 76, struct v4l2_enc_idx)
#define VIDIOC_ENCODER_CMD _IOWR('V', 77, struct v4l2_encoder_cmd)
#define VIDIOC_TRY_ENCODER_CMD _IOWR('V', 78, struct v4l2_encoder_cmd)

/*
 * Experimental, meant for debugging, testing and internal use.
 * Only implemented if CONFIG_VIDEO_ADV_DEBUG is defined.
 * You must be root to use these ioctls. Never use these in applications!
 */
#define VIDIOC_DBG_S_REGISTER _IOW('V', 79, struct v4l2_dbg_register)
#define VIDIOC_DBG_G_REGISTER _IOWR('V', 80, struct v4l2_dbg_register)

#define VIDIOC_S_HW_FREQ_SEEK _IOW('V', 82, struct v4l2_hw_freq_seek)
#define VIDIOC_S_DV_TIMINGS _IOWR('V', 87, struct v4l2_dv_timings)
#define VIDIOC_G_DV_TIMINGS _IOWR('V', 88, struct v4l2_dv_timings)
#define VIDIOC_DQEVENT _IOR('V', 89, struct v4l2_event)
#define VIDIOC_SUBSCRIBE_EVENT _IOW('V', 90, struct v4l2_event_subscription)
#define VIDIOC_UNSUBSCRIBE_EVENT _IOW('V', 91, struct v4l2_event_subscription)
#define VIDIOC_CREATE_BUFS _IOWR('V', 92, struct v4l2_create_buffers)
#define VIDIOC_PREPARE_BUF _IOWR('V', 93, struct v4l2_buffer)
#define VIDIOC_G_SELECTION _IOWR('V', 94, struct v4l2_selection)
#define VIDIOC_S_SELECTION _IOWR('V', 95, struct v4l2_selection)
#define VIDIOC_DECODER_CMD _IOWR('V', 96, struct v4l2_decoder_cmd)
#define VIDIOC_TRY_DECODER_CMD _IOWR('V', 97, struct v4l2_decoder_cmd)
#define VIDIOC_ENUM_DV_TIMINGS _IOWR('V', 98, struct v4l2_enum_dv_timings)
#define VIDIOC_QUERY_DV_TIMINGS _IOR('V', 99, struct v4l2_dv_timings)
#define VIDIOC_DV_TIMINGS_CAP _IOWR('V', 100, struct v4l2_dv_timings_cap)
#define VIDIOC_ENUM_FREQ_BANDS _IOWR('V', 101, struct v4l2_frequency_band)

/*
 * Experimental, meant for debugging, testing and internal use.
 * Never use this in applications!
 */
#define VIDIOC_DBG_G_CHIP_INFO _IOWR('V', 102, struct v4l2_dbg_chip_info)

#define VIDIOC_QUERY_EXT_CTRL _IOWR('V', 103, struct v4l2_query_ext_ctrl)

/* Reminder: when adding new ioctls please add support for them to
   drivers/media/v4l2-core/v4l2-compat-ioctl32.c as well! */

#define BASE_VIDIOC_PRIVATE 192 /* 192-255 are private */

#endif /* _UAPI__LINUX_VIDEODEV2_H */
